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       All of the business acquisitions are included in the
       Company&amp;#8217;s results of operations from their respective dates
       of acquisition.
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       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;2010
       Business Acquisitions&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
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   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
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       During the
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       period ended September&amp;#160;24, 2010, in separate transactions,
       the Company acquired three businesses for an aggregate purchase
       price of $705&amp;#160;million, which was financed with cash on
       hand. Based on preliminary purchase price allocations,
       the aggregate goodwill recognized for these businesses was
       $506&amp;#160;million, of which $490&amp;#160;million is expected to be
       deductible for income tax purposes. The goodwill was assigned to
       the Electronic Systems reportable segment. The Company also
       recognized identifiable intangible assets of $133&amp;#160;million
       in the aggregate, which primarily consisted of customer
       relationships and technology. The identifiable intangible assets
       will be amortized over a weighted average useful life of
       13&amp;#160;years. A description of each business acquisition made
       by the Company during the
       &lt;font style="white-space: nowrap"&gt;year-to-date&lt;/font&gt;
       period ended September&amp;#160;24, 2010 is listed below:
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       &lt;td&gt;    &amp;#8226;&amp;#160;&amp;#160;
   &lt;/td&gt;
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       On September&amp;#160;17, 2010, the Company acquired 3Di
       Technologies (3Di), a provider of highly specialized
       &lt;font style="white-space: nowrap"&gt;end-to-end&lt;/font&gt;
       secure communications utilized by forward-deployed
       U.S.&amp;#160;special operations and in-theater personnel. The
       purchase price for 3Di is
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   subject to additional, contingent consideration not to exceed
       $11&amp;#160;million based upon 3Di&amp;#8217;s post-acquisition
       financial performance through December&amp;#160;31, 2012. The
       Company recorded a $9&amp;#160;million liability on the acquisition
       date for the fair value of the contingent consideration, which
       was unchanged at September&amp;#160;24, 2010;
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       &lt;td&gt;    &amp;#8226;&amp;#160;&amp;#160;
   &lt;/td&gt;
       &lt;td align="left"&gt;
       On August&amp;#160;4, 2010, the Company acquired all of the
       outstanding stock of Airborne Technologies, Inc. (ATI), a
       provider of highly specialized aeronautical engineering
       expertise, manufacturing and operations support for unmanned
       aircraft systems;&amp;#160;and
   &lt;/td&gt;
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       &lt;td&gt;    &amp;#8226;&amp;#160;&amp;#160;
   &lt;/td&gt;
       &lt;td align="left"&gt;
       On April&amp;#160;14, 2010, the Company acquired all of the
       outstanding stock of Insight Technology Incorporated (Insight),
       a manufacturer of mission critical night vision and
       electro-optical equipment.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       The final purchase price for 3Di and ATI is subject to
       adjustment based on closing date actual net assets and net
       working capital, respectively. The final purchase price
       allocations for the 2010 business acquisitions are expected to
       be completed by the fourth quarter of 2010 and will be based on
       the final purchase prices and final appraisals and other
       analyses of fair values for acquired assets and assumed
       liabilities. The Company does not expect any of the differences
       between the preliminary and final purchase price allocations to
       have a material impact on its results of operations or financial
       position.
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   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
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       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;2009
       Business Acquisitions&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
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   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
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       On January&amp;#160;30, 2009, the Company acquired all of the
       outstanding stock of Chesapeake Sciences Corporation (CSC) for a
       purchase price of $91&amp;#160;million in cash, which included a
       $7&amp;#160;million net working capital adjustment and
       $4&amp;#160;million related to certain tax benefits acquired. The
       net working capital adjustment included $6&amp;#160;million for cash
       acquired. The acquisition was financed using cash on hand. CSC
       is a developer and manufacturer of anti-submarine warfare
       systems for use onboard submarines and surface ship combatants.
       Based on the final purchase price allocation, the amount of
       goodwill recognized was $56&amp;#160;million, which was assigned to
       the Electronic Systems reportable segment, and is not expected
       to be deductible for income tax purposes.
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   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
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       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Unaudited
       Pro Forma Statements of Operations Data&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
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   &lt;div align="left" style="margin-left: 0%; margin-right: 0%; text-indent: 2%; font-size: 10pt; font-family: 'Times New Roman', Times; color: #000000; background: transparent"&gt;
       The following unaudited pro forma Statements of Operations data
       presents the combined results of the Company and its business
       acquisitions completed during the
       &lt;font style="white-space: nowrap"&gt;year-to-date&lt;/font&gt;
       period ended September&amp;#160;24, 2010 and the year ended
       December&amp;#160;31, 2009, in each case assuming that the business
       acquisitions completed during these periods had occurred on
       January&amp;#160;1, 2009.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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   &amp;#160;
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       &lt;b&gt;Third Quarter Ended&lt;/b&gt;
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   &amp;#160;
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       &lt;b&gt;Year-to-Date Ended&lt;/b&gt;
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   &amp;#160;
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   &amp;#160;
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       &lt;b&gt;September&amp;#160;24,&lt;br /&gt;
       &lt;/b&gt;
   &lt;/td&gt;
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   &amp;#160;
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       &lt;b&gt;September&amp;#160;25,&lt;br /&gt;
       &lt;/b&gt;
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   &amp;#160;
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       &lt;b&gt;September&amp;#160;24,&lt;br /&gt;
       &lt;/b&gt;
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   &amp;#160;
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       &lt;b&gt;September&amp;#160;25,&lt;br /&gt;
       &lt;/b&gt;
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
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       &lt;b&gt;2010&lt;/b&gt;
   &lt;/td&gt;
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   &amp;#160;
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       &lt;b&gt;2009&lt;/b&gt;
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   &amp;#160;
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   &lt;td colspan="3" nowrap="nowrap" align="center" valign="bottom" style="border-bottom: 1px solid #000000"&gt;
       &lt;b&gt;2010&lt;/b&gt;
   &lt;/td&gt;
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   &amp;#160;
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       &lt;b&gt;2009&lt;/b&gt;
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
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       &lt;b&gt;(in millions, except per share data)&lt;/b&gt;
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       Pro forma net sales
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   &amp;#160;
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       $
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       &amp;#160;&amp;#160;3,845
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
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       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       &amp;#160;3,925
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       &amp;#160;11,532
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       &amp;#160;11,712
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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       Pro forma net income attributable to L-3
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   &amp;#160;
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       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       239
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       251
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       692
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       692
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   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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       Pro forma diluted EPS
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   &amp;#160;
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       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       2.07
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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       2.13
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
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       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       5.93
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   &amp;#160;
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   &lt;td&gt;
   &amp;#160;
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       $
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   &lt;td nowrap="nowrap" align="right" valign="bottom"&gt;
       5.84
   &lt;/td&gt;
   &lt;td nowrap="nowrap" align="left" valign="bottom"&gt;
   &amp;#160;
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       The unaudited pro forma results disclosed in the table above are
       based on various assumptions and are not necessarily indicative
       of the results of operations that would have occurred had the
       Company completed these acquisitions on January&amp;#160;1, 2009.
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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