Outgoing Secretary of Defense Leon E. Panetta speaks to the audience during his farewell ceremony at the center courtyard at the Pentagon, Washington, D.C., 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)