"There's a buoyancy in prison now, it sounds like an oxymoron, but there's a buoyancy in prison now because a lot of people have a stake in helping our war wounded."

VOA: standard.2010.05.18

"Some activities of American prisoners of war within German prison camps must remain secret not only for the duration of the war against the present enemies of the United States but in peace-time as well, " the document says.

CNN: Lawmakers to Army chief: Honor soldiers held as slaves by Nazis

But Mr Demjanjuk, who came to the US in 1952, says he was a prisoner of war of the Nazis rather than a prison guard.

BBC: 'Death camp Nazi' can be deported

Once a potent symbol of American frustration with the Vietnam War, the prison is now a tourist attraction, in the shadow of an upscale high-rise building owned by a Singapore businessman.

CNN: 'Hanoi Hilton' now holds only painful memories