ANSWERING TO THE SENATE U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, testifies with Defense Secretary Robert M. Gates before the Senate Armed Service Committee, April 10, 2008, on progress made in the war on terror, the way forward in Iraq and the situation in Afghanistan. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 366854-I-BOC06-557.jpg Photo Gallery