FILE - Outgoing US Deputy Secretary of State, Warren Christopher (right) strolls away under an umbrella, as the American hostages freed from Iran, and Algerian officials, gather around the Algerian aircraft that flew the hostages to freedom at Algiers airport, on in this Jan. 21, 1981 file photo. Christopher, who led the negotiating team, greeted the hostages as they the aircraft. Christopher died from complications of kidney and bladder cancer at his home in Los Angeles Friday March 18, 2011. He was 85. (AP Photo, File)