Files from the National Archives reveal that the British government supported the release of the Nazi war criminal Rudolf Hess as early as 1956. The deputy to Hitler, Hess, was guarded by the so called Four Powers -- the victors of World War II US, France, Britain although the Soviet Union refused to release him. The last British governor of Spandau prison, Tony Le Tissier, talks to the BBC's Sanchia Berg. (Image: Rudolph Hess, credit: Getty Images)