SENATE TESTIMONY Defense Secretary Robert M. Gates, center, Navy Adm. Mike Mullen, left, chairman of the Joint Chiefs of Staff, and Robert F. Hale, undersecretary of defense (comptroller) testify at a Senate Armed Services Committee hearing on the department's 2012 budget request in Washington, D.C., Feb. 17, 2011. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 109468-M-KTH21-668.jpg Photo Gallery