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		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_DocumentAndEntityInformationAbstract" xlink:label="loc_isec_DocumentAndEntityInformationAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_DocumentAndEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Document and Entity Information [Abstract]</label>
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		<label xlink:type="resource" xlink:label="lab_isec_DocumentAndEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Document and Entity Information [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Registrant Name</label>
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		<label xlink:type="resource" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Registrant Name</label>
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		<label xlink:type="resource" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Central Index Key</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Central Index Key</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol"/>
		<label xlink:type="resource" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Trading Symbol</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol"/>
		<label xlink:type="resource" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Trading Symbol</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Current Reporting Status</label>
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		<label xlink:type="resource" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Current Reporting Status</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Voluntary Filers</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers" xlink:to="lab_dei_EntityVoluntaryFilers"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Voluntary Filers</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate"/>
		<label xlink:type="resource" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Current Fiscal Year End Date</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate"/>
		<label xlink:type="resource" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Current Fiscal Year End Date</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Filer Category</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Filer Category</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Well-Known Seasoned Issuer</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Well-known Seasoned Issuer</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Common Stock, Shares Outstanding</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityPublicFloat" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Entity Public Float</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityPublicFloat" xlink:to="lab_dei_EntityPublicFloat"/>
		<label xlink:type="resource" xlink:label="lab_dei_EntityPublicFloat" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Entity Public Float</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Document Type</label>
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		<label xlink:type="resource" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Document Type</label>
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		<label xlink:type="resource" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Document Period End Date</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Document Period End Date</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag"/>
		<label xlink:type="resource" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Amendment Flag</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag"/>
		<label xlink:type="resource" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Amendment Flag</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Document Fiscal Year Focus</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Document Fiscal Year Focus</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Document Fiscal Period Focus</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus"/>
		<label xlink:type="resource" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Document Fiscal Period Focus</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement Of Financial Position [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement of Financial Position [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement [Table]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable" xlink:to="lab_us-gaap_StatementTable"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement [Table]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementClassOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Class Of Stock [Axis]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementClassOfStockAxis" xlink:to="lab_us-gaap_StatementClassOfStockAxis"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementClassOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Class of Stock [Axis]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ClassOfStockDomain" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Class Of Stock [Domain]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockDomain" xlink:to="lab_us-gaap_ClassOfStockDomain"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ClassOfStockDomain" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Class of Stock [Domain]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeriesCPreferredStockMember" xlink:label="loc_us-gaap_SeriesCPreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SeriesCPreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Series C Preferred Stock [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeriesCPreferredStockMember" xlink:to="lab_us-gaap_SeriesCPreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SeriesCPreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Preferred Series C</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SeriesDPreferredStockMember" xlink:label="loc_us-gaap_SeriesDPreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SeriesDPreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Series D Preferred Stock [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeriesDPreferredStockMember" xlink:to="lab_us-gaap_SeriesDPreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SeriesDPreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Preferred Series D</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Assets [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">ASSETS</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Assets, Current [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="lab_us-gaap_AssetsCurrentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Current Assets</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cash and Cash Equivalents, At Carrying Value</label>
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		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cash and cash equivalents</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Cash and cash equivalents</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Cash at beginning of period</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Cash at end of period</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Accounts Receivable, Net, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accounts receivable, net of allowance for doubtful accounts of $727,754 in 2011 and $470,998 in 2010</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accounts receivable, net of allowance for doubtful accounts of $727,754 in 2011 and $470,998 in 2010</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Inventory, Net</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet" xlink:to="lab_us-gaap_InventoryNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Inventories</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Inventories</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Prepaid Expense and Other Assets, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Prepaid expenses and other</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Prepaid expenses and other</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Assets, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="lab_us-gaap_AssetsCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total current assets</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total current assets</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Property, Plant and Equipment, Net</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Leasehold improvements and equipment, net of accumulated depreciation of $13,610,392 in 2011 and $12,428,434 in 2010</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Leasehold improvements and equipment, net of accumulated depreciation of $13,325,120 in 2011 and $12,428,434 in 2010</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Property, Plant and Equipment, Net, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Property, Plant and Equipment, Net, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Goodwill</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill" xlink:to="lab_us-gaap_Goodwill"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Goodwill</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Goodwill, Total</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Goodwill, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Goodwill, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Other Assets, Noncurrent</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrent" xlink:to="lab_us-gaap_OtherAssetsNoncurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Other assets</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Other Assets, Noncurrent, Total</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Assets</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets" xlink:to="lab_us-gaap_Assets"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total assets</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total assets</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Liabilities and Equity [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Liabilities, Current [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Current Liabilities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Accounts Payable, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent" xlink:to="lab_us-gaap_AccountsPayableCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accounts payable</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accounts Payable, Current, Total</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Accrued Liabilities, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accrued expenses</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accrued Liabilities, Current, Total</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaap_LinesOfCreditCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LinesOfCreditCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Line Of Credit, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LinesOfCreditCurrent" xlink:to="lab_us-gaap_LinesOfCreditCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LinesOfCreditCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Revolving line of credit</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Long-Term Debt, Current Maturities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtCurrent" xlink:to="lab_us-gaap_LongTermDebtCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Current maturities of long-term debt</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Current maturities of long-term debt</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DeferredRevenueCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Deferred Revenue, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRevenueCurrent" xlink:to="lab_us-gaap_DeferredRevenueCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DeferredRevenueCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Deferred revenues</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DeferredRevenueCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Deferred Revenue, Current, Total</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Liabilities, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total current liabilities</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total current liabilities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Long-Term Debt, Excluding Current Maturities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtNoncurrent" xlink:to="lab_us-gaap_LongTermDebtNoncurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Long-term debt, less current maturities, including accrued interest on long-term debt</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Long-term debt, less current maturities, including accrued interest on long-term debt</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Liabilities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total liabilities</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total liabilities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TemporaryEquityCarryingAmount" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmount"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_TemporaryEquityCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Temporary Equity, Carrying Amount</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TemporaryEquityCarryingAmount" xlink:to="lab_us-gaap_TemporaryEquityCarryingAmount"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_TemporaryEquityCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Redeemable convertible Series C preferred stock</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_TemporaryEquityCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Redeemable convertible Series C preferred stock</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_TemporaryEquityCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Temporary Equity, Carrying Amount, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_TemporaryEquityCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Temporary Equity, Carrying Amount, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Commitments and Contingencies</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies" xlink:to="lab_us-gaap_CommitmentsAndContingencies"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Commitments and contingency</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stockholders Equity Attributable To Parent [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract" xlink:to="lab_us-gaap_StockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Stockholders' equity</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Common Stock, Value, Issued</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValue" xlink:to="lab_us-gaap_CommonStockValue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Common stock</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Common Stock, Value, Issued, Total</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Common Stock, Value, Issued, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Common Stock, Value, Issued, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_NonredeemableConveriblePreferredStock" xlink:label="loc_isec_NonredeemableConveriblePreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_isec_NonredeemableConveriblePreferredStock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Nonredeemable Converible Preferred Stock</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_NonredeemableConveriblePreferredStock" xlink:to="lab_isec_NonredeemableConveriblePreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_isec_NonredeemableConveriblePreferredStock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Nonredeemable exchangeable preferred stock</label>
		<label xlink:type="resource" xlink:label="lab_isec_NonredeemableConveriblePreferredStock" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Represents the value of issued nonredeemable converible preferred stock.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Additional Paid In Capital, Common Stock</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="lab_us-gaap_AdditionalPaidInCapitalCommonStock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Additional paid-in capital</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Additional Paid in Capital, Common Stock, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Additional Paid in Capital, Common Stock, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net Of Tax</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accumulated deficit</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accumulated deficit</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stockholders Equity Attributable To Parent</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity" xlink:to="lab_us-gaap_StockholdersEquity"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total stockholders' equity (deficit)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total stockholders' equity (deficit)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Liabilities and Equity</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total liabilities and stockholders' equity</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total liabilities and stockholders' equity</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Allowance For Doubtful Accounts Receivable, Current</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Allowance for doubtful accounts receivable</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Allowance for Doubtful Accounts Receivable, Current, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Allowance for Doubtful Accounts Receivable, Current, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accumulated depreciation on Leasehold improvements and equipment</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Income Statement [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Income Statement [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RevenuesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Revenues [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenuesAbstract" xlink:to="lab_us-gaap_RevenuesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RevenuesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Revenues:</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Operating Leases, Income Statement, Lease Revenue</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:to="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Equipment leasing</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Equipment leasing</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_AdministrativeFieldAndSupportServiceRevenues" xlink:label="loc_isec_AdministrativeFieldAndSupportServiceRevenues"/>
		<label xlink:type="resource" xlink:label="lab_isec_AdministrativeFieldAndSupportServiceRevenues" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Administrative Field and Support Service Revenues</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_AdministrativeFieldAndSupportServiceRevenues" xlink:to="lab_isec_AdministrativeFieldAndSupportServiceRevenues"/>
		<label xlink:type="resource" xlink:label="lab_isec_AdministrativeFieldAndSupportServiceRevenues" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Administrative, field &amp; support service revenues</label>
		<label xlink:type="resource" xlink:label="lab_isec_AdministrativeFieldAndSupportServiceRevenues" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The total amount of revenue recognized for the period from administrative, field &amp; support service revenues.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SalesRevenueGoodsNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Sales Revenue, Goods, Net</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SalesRevenueGoodsNet" xlink:to="lab_us-gaap_SalesRevenueGoodsNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SalesRevenueGoodsNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Equipment sales</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SalesRevenueGoodsNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Equipment sales</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RoyaltyRevenue" xlink:label="loc_us-gaap_RoyaltyRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RoyaltyRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Royalty Revenue</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RoyaltyRevenue" xlink:to="lab_us-gaap_RoyaltyRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RoyaltyRevenue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Royalty revenue</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RoyaltyRevenue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Royalty revenue</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Revenues</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues" xlink:to="lab_us-gaap_Revenues"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total revenues</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total revenues</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Operating Expenses [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract" xlink:to="lab_us-gaap_OperatingExpensesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Operating expenses:</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CostOfRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cost Of Revenue</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfRevenue" xlink:to="lab_us-gaap_CostOfRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CostOfRevenue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cost of revenues</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CostOfRevenue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Cost of revenues</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Research and Development Expense</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:to="lab_us-gaap_ResearchAndDevelopmentExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Research and development</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Research and development</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Selling, General and Administrative Expense</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="lab_us-gaap_SellingGeneralAndAdministrativeExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Sales, general and administrative</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Sales, general and administrative</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Operating Expenses</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpenses" xlink:to="lab_us-gaap_OperatingExpenses"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total operating expenses</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total operating expenses</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Operating Income (Loss)</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="lab_us-gaap_OperatingIncomeLoss"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Operating income (loss)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Operating income (loss)</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Nonoperating Income (Expense) [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="lab_us-gaap_NonoperatingIncomeExpenseAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Interest income (expense):</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Investment Income, Interest</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIncomeInterest" xlink:to="lab_us-gaap_InvestmentIncomeInterest"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Interest income</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Interest Expense</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense" xlink:to="lab_us-gaap_InterestExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Interest expense</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Interest expense</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Interest expense</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaap_NonoperatingIncomeExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Nonoperating Income (Expense)</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NonoperatingIncomeExpense" xlink:to="lab_us-gaap_NonoperatingIncomeExpense"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Total interest expense</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NonoperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Total interest expense</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Income (Loss) From Continuing Operations Before Income Taxes, Extraordinary Items, Noncontrolling Interest</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Loss before provision for income taxes</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Loss before provision for income taxes</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Income Tax Expense (Benefit)</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Provision for income taxes</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Provision for income taxes</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Income (Loss) Attributable To Parent</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Net loss</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net loss</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Net loss</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Preferred Stock Dividends and Other Adjustments</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:to="lab_us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Preferred stock dividends and accretion</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Preferred stock dividends and accretion</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Preferred stock dividends and accretion</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Income (Loss) Available To Common Stockholders, Basic</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net loss available to common stockholders</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Net loss available to common stockholders</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Earnings Per Share, Basic and Diluted</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="lab_us-gaap_EarningsPerShareBasicAndDiluted"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Basic and diluted loss per common share (in dollars per share)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDiluted" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Basic and diluted loss per common share (in dollars per share)</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne" xlink:label="loc_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne"/>
		<label xlink:type="resource" xlink:label="lab_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Weighted Average Number Of Shares Outstanding, Basic and Diluted, One</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne" xlink:to="lab_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne"/>
		<label xlink:type="resource" xlink:label="lab_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Weighted average shares of common stock outstanding (in shares)</label>
		<label xlink:type="resource" xlink:label="lab_isec_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedOne" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The average number of shares or units issued and outstanding that are used in calculating basic and diluted EPS.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement Of Stockholders Equity [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement, Equity Components [Axis]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement, Equity Components [Axis]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Common Stock [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember" xlink:to="lab_us-gaap_CommonStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Common Stock</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Preferred Stock [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockMember" xlink:to="lab_us-gaap_PreferredStockMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Preferred Stock</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Additional Paid-In Capital [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Additional Paid-in Capital</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Retained Earnings [Member]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember" xlink:to="lab_us-gaap_RetainedEarningsMember"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accumulated Deficit</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement [Line Items]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement [Line Items]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Stockholders Equity [Roll Forward]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Shares, Outstanding</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharesOutstanding" xlink:to="lab_us-gaap_SharesOutstanding"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Balance (shares)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xml:lang="en-US">Balance (in shares)</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xml:lang="en-US">Balance (in shares)</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_StockIssuedDuringPeriodValueDirectorsFees" xlink:label="loc_isec_StockIssuedDuringPeriodValueDirectorsFees"/>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodValueDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stock Issued During Period, Value, Directors Fees</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_StockIssuedDuringPeriodValueDirectorsFees" xlink:to="lab_isec_StockIssuedDuringPeriodValueDirectorsFees"/>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodValueDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued for directors' fees</label>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodValueDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">This element represents the value of stock issued during the period in lieu of directors fees.</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_StockIssuedDuringPeriodSharesDirectorsFees" xlink:label="loc_isec_StockIssuedDuringPeriodSharesDirectorsFees"/>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodSharesDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stock Issued During Period, Shares, Directors Fees</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_StockIssuedDuringPeriodSharesDirectorsFees" xlink:to="lab_isec_StockIssuedDuringPeriodSharesDirectorsFees"/>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodSharesDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued for directors' fees (in shares)</label>
		<label xlink:type="resource" xlink:label="lab_isec_StockIssuedDuringPeriodSharesDirectorsFees" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">This element represents the number of shares issued during the period in lieu of directors fees.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stock Issued During Period, Value, Stock Options Exercised</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued upon exercise of Options</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued upon exercise of Options (in shares)</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Adjustments To Additional Paid In Capital, Share-Based Compensation, Requisite Service Period Recognition</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Stock based compensation</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Stock based compensation</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Stock based compensation</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:label="loc_isec_EquityImpactOfSeriesCPreferredStockDividends"/>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Equity Impact Of Series C Preferred Stock Dividends</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:to="lab_isec_EquityImpactOfSeriesCPreferredStockDividends"/>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Series C preferred stock dividends</label>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Equity impact of Series C preferred stock cash dividends, Additional Paid-in Capital and Retained Earnings, declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.</label>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesCPreferredStockDividends" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Series C preferred stock dividends</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:label="loc_isec_EquityImpactOfSeriesDPreferredStockDividends"/>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Equity Impact Of Series D Preferred Stock Dividends</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:to="lab_isec_EquityImpactOfSeriesDPreferredStockDividends"/>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Series D preferred stock dividends</label>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Equity impact of Series C preferred stock cash dividends, Additional Paid-in Capital and Retained Earnings, declared by an entity during the period. This element includes paid and unpaid dividends declared during the period.</label>
		<label xlink:type="resource" xlink:label="lab_isec_EquityImpactOfSeriesDPreferredStockDividends" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Series D preferred stock dividends</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation" xlink:label="loc_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation"/>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Reclassification Of Preferred Stock, Value, Pursuant To Amended Designation</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation" xlink:to="lab_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation"/>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Reclassification of Series C preferred stock pursuant to amended designation</label>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockValuePursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Represents value of stock issued for reclassification of preferred stock value pursuant to amended designation.</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation" xlink:label="loc_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation"/>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Reclassification Of Preferred Stock, Shares, Pursuant To Amended Designation</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation" xlink:to="lab_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation"/>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Reclassification of Series C preferred stock pursuant to amended designation (in shares)</label>
		<label xlink:type="resource" xlink:label="lab_isec_ReclassificationOfPreferredStockSharesPursuantToAmendedDesignation" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">Represents number of shares issued for reclassification of preferred stock value pursuant to amended designation.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stock Issued During Period, Value, Conversion Of Convertible Securities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued in connection with debt conversion</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Stock Issued During Period, Shares, Conversion Of Convertible Securities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Shares issued in connection with debt conversion (in shares)</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Adjustments To Additional Paid In Capital, Increase In Carrying Amount Of Redeemable Preferred Stock</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accretion to redemption value of preferred stock</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Statement Of Cash Flows [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Statement of Cash Flows [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Operating Activities, Continuing Operations [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cash Flows From Operating Activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Adjustments to reconcile net loss to net cash provided by (used in) operating activities:</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Depreciation, Depletion and Amortization</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:to="lab_us-gaap_DepreciationDepletionAndAmortization"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Depreciation and amortization</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Depreciation and amortization</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Share-Based Compensation</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation" xlink:to="lab_us-gaap_ShareBasedCompensation"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Stock based compensation</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Stock based compensation</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Provision For Doubtful Accounts</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProvisionForDoubtfulAccounts" xlink:to="lab_us-gaap_ProvisionForDoubtfulAccounts"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Provision for Doubtful Accounts</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Operating Capital [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Changes in operating assets and liabilities:</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Accounts Receivable</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsReceivable"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accounts receivable</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Accounts receivable</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Inventories</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInventories" xlink:to="lab_us-gaap_IncreaseDecreaseInInventories"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Inventories</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Inventories</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Inventories</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Prepaid Expense and Other Assets</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Prepaid expenses and other assets</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Prepaid expenses and other assets</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Prepaid expenses and other assets</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Accounts Payable, Trade</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accounts payable</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Accrued Liabilities</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accrued expenses</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Accrued expenses</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaap_IncreaseDecreaseInDeferredRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Deferred Revenue</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="lab_us-gaap_IncreaseDecreaseInDeferredRevenue"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Deferred revenues</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Increase (Decrease) In Interest Payable, Net</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestPayableNet"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accrued interest payable</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Operating Activities, Continuing Operations</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net cash provided by operating activities</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Net cash provided by operating activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Investing Activities, Continuing Operations [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cash Flows From Investing Activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Payments To Acquire Property, Plant, and Equipment</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Purchases of leasehold improvements and equipment</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Purchases of leasehold improvements and equipment</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Purchases of leasehold improvements and equipment</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForSoftware" xlink:label="loc_us-gaap_PaymentsForSoftware"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsForSoftware" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Payments For Software</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForSoftware" xlink:to="lab_us-gaap_PaymentsForSoftware"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsForSoftware" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Capitalization of software development costs</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsForSoftware" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Capitalization of software development costs</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PaymentsForSoftware" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Capitalization of software development costs</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Investing Activities, Continuing Operations</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net cash used in investing activities</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Net cash used in investing activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Financing Activities, Continuing Operations [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Cash Flows From Financing Activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Proceeds From Issuance Of Long-Term Debt</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Principal proceeds from long-term debt</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Principal proceeds from long-term debt</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Proceeds From Lines Of Credit</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromLinesOfCredit" xlink:to="lab_us-gaap_ProceedsFromLinesOfCredit"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Proceeds from revolving line of credit, net</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_ProceedsFromLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Proceeds from Lines of Credit, Total</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ProceedsFromEquipmentTermLoan" xlink:label="loc_isec_ProceedsFromEquipmentTermLoan"/>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromEquipmentTermLoan" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Proceeds From Equipment Term Loan</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ProceedsFromEquipmentTermLoan" xlink:to="lab_isec_ProceedsFromEquipmentTermLoan"/>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromEquipmentTermLoan" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Proceeds from equipment term loan</label>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromEquipmentTermLoan" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The Cash inflows from financing arrangements with vendors (seller-financed debt); such debt may have arisen from purchases of property, plant and equipment or other productive assets.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Repayments Of Long-Term Debt</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLongTermDebt" xlink:to="lab_us-gaap_RepaymentsOfLongTermDebt"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Principal payments on long-term debt</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Principal payments on long-term debt</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RepaymentsOfLongTermDebt" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Principal payments on long-term debt</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:label="loc_isec_PaymentsOnPreferredStockAndDebtConversionAgreement"/>
		<label xlink:type="resource" xlink:label="lab_isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Payments On Preferred Stock and Debt Conversion Agreement</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:to="lab_isec_PaymentsOnPreferredStockAndDebtConversionAgreement"/>
		<label xlink:type="resource" xlink:label="lab_isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Payments in connection with Series D Preferred Stock and debt conversion agreement</label>
		<label xlink:type="resource" xlink:label="lab_isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The cash outflow for payments in connection with Series D Preferred stock and debt conversion agreement.</label>
		<label xlink:type="resource" xlink:label="lab_isec_PaymentsOnPreferredStockAndDebtConversionAgreement" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xml:lang="en-US">Payments in connection with Series D Preferred Stock and debt conversion agreement</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ProceedsFromExerciseOfOptionsAndWarrants" xlink:label="loc_isec_ProceedsFromExerciseOfOptionsAndWarrants"/>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromExerciseOfOptionsAndWarrants" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Proceeds From Exercise Of Options and Warrants</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ProceedsFromExerciseOfOptionsAndWarrants" xlink:to="lab_isec_ProceedsFromExerciseOfOptionsAndWarrants"/>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromExerciseOfOptionsAndWarrants" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Proceeds from the exercise of options and warrants</label>
		<label xlink:type="resource" xlink:label="lab_isec_ProceedsFromExerciseOfOptionsAndWarrants" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The cash inflow from proceeds from the exercise of options and warrants.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Cash Provided By (Used In) Financing Activities, Continuing Operations</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Net cash used in financing activities</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Net cash used in financing activities</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Increase (decrease) in cash</label>
		<label xlink:type="resource" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xml:lang="en-US">Increase (decrease) in cash</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowElementsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Supplemental Cash Flow Elements [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract" xlink:to="lab_us-gaap_SupplementalCashFlowElementsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Supplemental Non-cash Disclosure</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_IssuanceOfPreferredStock" xlink:label="loc_isec_IssuanceOfPreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_isec_IssuanceOfPreferredStock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Issuance Of Preferred Stock</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_IssuanceOfPreferredStock" xlink:to="lab_isec_IssuanceOfPreferredStock"/>
		<label xlink:type="resource" xlink:label="lab_isec_IssuanceOfPreferredStock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Issuance of 1,331,814 of Series D Preferred Stock in connection with:</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1" xlink:label="loc_us-gaap_DebtConversionOriginalDebtAmount1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtConversionOriginalDebtAmount1" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Debt Conversion, Original Debt, Amount</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtConversionOriginalDebtAmount1" xlink:to="lab_us-gaap_DebtConversionOriginalDebtAmount1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtConversionOriginalDebtAmount1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Conversion of long-term debt pursuant to debt conversion agreeement dated June 30, 2011</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestPaid" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Interest Paid</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaid" xlink:to="lab_us-gaap_InterestPaid"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_InterestPaid" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Accrued interest payable on related long-term debt converted</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:label="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Noncash Or Part Noncash Acquisition, Fixed Assets Acquired</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:to="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Equipment purchases included in Accounts payable amounts above</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Debt Conversion, Converted Instrument, Shares Issued</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:to="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Series D Preferred Stock issued in connection with conversion of debt</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract" xlink:label="loc_isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Nature Of Business and Significant Accounting Policies [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract" xlink:to="lab_isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_NatureOfBusinessAndSignificantAccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Nature Of Business and Significant Accounting Policies [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Organization, Consolidation, Basis Of Presentation, Business Description and Accounting Policies [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:to="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Nature of Business and Significant Accounting Policies</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Property, Plant and Equipment [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Property, Plant and Equipment [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Property, Plant and Equipment Disclosure [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Leasehold Improvements and Equipment</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GoodwillDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_GoodwillDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Goodwill Disclosure [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillDisclosureTextBlock" xlink:to="lab_us-gaap_GoodwillDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_GoodwillDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Goodwill</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_CreditAgreementsAbstract" xlink:label="loc_isec_CreditAgreementsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_CreditAgreementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Credit Agreements [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_CreditAgreementsAbstract" xlink:to="lab_isec_CreditAgreementsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_CreditAgreementsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Credit Agreements [Abstract]</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_CreditAgreementsTextBlock" xlink:label="loc_isec_CreditAgreementsTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_isec_CreditAgreementsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Credit Agreements [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_CreditAgreementsTextBlock" xlink:to="lab_isec_CreditAgreementsTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_isec_CreditAgreementsTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Credit Agreements</label>
		<label xlink:type="resource" xlink:label="lab_isec_CreditAgreementsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The entire disclosure for credit agreements.</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Debt Disclosure [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract" xlink:to="lab_us-gaap_DebtDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Debt Disclosure [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="loc_us-gaap_LongTermDebtTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Long-Term Debt [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtTextBlock" xlink:to="lab_us-gaap_LongTermDebtTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_LongTermDebtTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Long-Term Debt and Lease Obligations</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Disclosure Of Compensation Related Costs, Share-Based Payments [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Common Stock, Stock Options, Warrants and Benefit Plan</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ConvertiblePreferredStockAbstract" xlink:label="loc_isec_ConvertiblePreferredStockAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_ConvertiblePreferredStockAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Convertible Preferred Stock [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ConvertiblePreferredStockAbstract" xlink:to="lab_isec_ConvertiblePreferredStockAbstract"/>
		<label xlink:type="resource" xlink:label="lab_isec_ConvertiblePreferredStockAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Convertible Preferred Stock [Abstract]</label>
		<loc xlink:type="locator" xlink:href="isec-20111231.xsd#isec_ConvertiblePreferredStockTextBlock" xlink:label="loc_isec_ConvertiblePreferredStockTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_isec_ConvertiblePreferredStockTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Convertible Preferred Stock [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_isec_ConvertiblePreferredStockTextBlock" xlink:to="lab_isec_ConvertiblePreferredStockTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_isec_ConvertiblePreferredStockTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xml:lang="en-US">The entire disclosure for convertible preferred stock.</label>
		<label xlink:type="resource" xlink:label="lab_isec_ConvertiblePreferredStockTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Convertible Preferred Stock [Text Block]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Income Tax Disclosure [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract" xlink:to="lab_us-gaap_IncomeTaxDisclosureAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Income Tax Disclosure [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Income Tax Disclosure [Text Block]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="lab_us-gaap_IncomeTaxDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Income Taxes</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Related Party Transactions [Abstract]</label>
		<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Related Party Transactions [Abstract]</label>
		<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
		<label xlink:type="resource" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</label>
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		<label xlink:type="resource" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="en-US">Related Party Transactions</label>
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