From left, Secretary of Defense Leon E. Panetta, former Secretary of State Hillary Rodham Clinton and U.S. Army Gen. Martin E. Dempsey, the chairman of the Joint Chiefs of Staff, walk on stage before the start of a farewell tribute and award ceremony honoring Clinton at the Pentagon in Arlington, Va., Feb. 14, 2013. (DoD photo by Staff Sgt. Sun L. Vega, U.S. Army/Released)