The Senate Foreign Relations Committee holds a hearing with Deputy Secretary of State Thomas Nides (right), who is in charge of management, and Deputy Secretary of State William J. Burns (left), who is in charge of policy, on Capitol Hill in Washington on Thursday, Dec. 20, 2012, after an independent review panel said this week that serious bureaucratic mismanagement was responsible for inadequate security at the mission in Benghazi, Libya, at which the U.S. ambassador and three other Americans were killed on Sept. 11. (AP Photo/J. Scott Applewhite)

Photo by: J. Scott Applewhite

The Senate Foreign Relations Committee holds a hearing with Deputy Secretary of State Thomas Nides (right), who is in charge of management, and Deputy Secretary of State William J. Burns (left), who is in charge of policy, on Capitol Hill in Washington on Thursday, Dec. 20, 2012, after an independent review panel said this week that serious bureaucratic mismanagement was responsible for inadequate security at the mission in Benghazi, Libya, at which the U.S. ambassador and three other Americans were killed on Sept. 11. (AP Photo/J. Scott Applewhite)