Munich massacre.jpg FILE - In this Sept. 5, 1972 file photo, a member of the Arab Commando group which seized members of the Israeli Olympic Team at their quarters at the Munich Olympic Village appears with a hood over his face on the balcony of the village building where the commandos held several members of the Israeli team hostage. Terror attacks have been rare at past Olympics. The most notorious was the 1972 massacre of 11 Israeli athletes and a police officer by the radical Palestinian group in Munich. (AP Photo/Kurt Strumpf, File)
Hooded man.jpg FILE - This late 2003 file image obtained by The Associated Press shows an unidentified detainee standing on a box with a bag on his head and wires attached to him, at the Abu Ghraib prison in Baghdad. (AP Photo, File)
A Chinese man stands alone to block a line of tanks heading east on Beijing's Cangan Blvd. in Tiananmen Square on June 5, 1989. The man, calling for an end to the recent violence and bloodshed against pro-democracy demonstrators, was pulled away by bystanders, and the tanks continued on their way. The Chinese government crushed a student-led demonstration for democratic reform and against government corruption, killing hundreds, or perhaps thousands of demonstrators in the strongest anti-government protest since the 1949 revolution. Ironically, the name Tiananmen means "Gate of Heavenly Peace". (AP Photo/Jeff Widener)
President has been shot.jpg President Reagan waves, then looks up before being shoved into Presidential limousine by Secret Service agents after being shot outside a Washington hotel Monday, March 30, 1981. (AP Photo/Ron Edmonds)
FILE - This is July 29, 1981 file photo of Britain's Prince Charles kisses his bride, Princess Diana , on the balcony of Buckingham Palace in London, after their wedding. It was announced on Tuesday Nov. 16, 2010 that their son Prince William is engaged to his girlfriend Kate Middleton and will marry her next year . (AP Photo, File )
Lady in the mask.jpg FILE - This is a Thursday July 7, 2005, file photo of Paul Dadge, right, as helps injured tube passenger Davinia Turrell away from Edgware Road tube station in London following an explosion. The inquests into the deaths of 52 commuters in the suicide bombings on London's transit system in 2005 will look at whether failures by British spies and police contributed to the attacks, a judge ruled Friday May 21, 2010. (AP Photo/Jane Mingay, File)
Mandela's walk to freedom.jpg FILE - In this Feb. 11, 1990, file photo, Nelson Mandela and his wife, Winnie, raise clenched fists as they walk hand-in-hand upon his release from prison in Cape Town, South Africa. South Africa's president says, Thursday, Dec. 5, 2013, that Mandela has died. He was 95. (AP Photo/Greg English, File)
Moors murders (2).jpg Hindley holds a puppey dog by the grave of John Kilbride on Saddleworth Moor. THESE PICTURES ARE FOR USE AFTER PAYMENT SETTLEMENT AND FOR A ONE OFF USE ONLY IN THE MAIL ON SUNDAY. NOT FOR SYNDICATION>