Pentagon staff listen to remarks by outgoing Defense Secretary Leon Panetta during a farewell ceremony in Arlington, Va., Feb. 12, 2013. Panetta, whose public service career spanned four decades and included stints as a lawmaker, White House chief of staff and CIA director, oversaw the repeal of a ban on gays serving openly in uniform and opened combat roles to women. (U.S. Army photo by Eboni Everson-Myart/Released)