Blake arrives at what was then Royal Air Force Abingdon in Oxfordshire, England, after his release from North Korea in 1953. He became a double agent in service of the KGB.

British diplomat and spy George Blake, the former vice-consul in Seoul, South Korea, arrives at RAF Abingdon in Oxfordshire after his release, 22nd April 1953. He was captured by the North Koreans in 1950 and converted to Marxism. In 1961, he was found guilty of betraying British secrets to the Russians. At the bottom left is Commissioner Herbert Lord of the Salvation Army, who was also interned by the North Koreans. (Photo by Central Press/Hulton Archive/Getty Images)