Article Photos: Panetta defends military response in Libya attack 2/2

Senate Armed Service Committee Chairman Sen. Carl Levin D-Mich. shakes hands with outgoing Defense Secretary Leon Panetta on Capitol Hill in Washington, Thursday, Feb. 7, 2013, prior to Panetta testifying before the committee's hearing on the Pentagon's role in responding to the attack last year on the U.S. consulate in Benghazi, Libya, where the ambassador and three other Americans were killed. Entering the hearing room are Sen. Lindsey Graham, R-S.C., left, and Sen. Joe Manchin, D-W. Va., second from left. (AP Photo/J. Scott Applewhite)