Secretary Panetta and Adm. Mullen listen to a senator’s question Secretary of Defense Leon E. Panetta and Chairman of the Joint Chiefs of Staff Adm. Mike Mullen listen to a senator’s question as they testify at a Senate Armed Services Committee hearing on the U.S. strategy in Afghanistan and Iraq on Sept. 22, 2011, in Washington, D.C. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 711280-U-BGK34-741.jpg Photo Gallery