Exhibit 23

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-64389 and 333-103752) of L-3 Communications Holdings, Inc. of our report dated June 25, 2008 relating to the financial statements of the L-3 Communications Master Savings Plan which appears in this Form 11-K.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
New York, New York
June 25, 2008