When did the double agent who was recruited by Arnold Deutsch defect to the Soviet Union ?
Arnold Deutsch Arnold Deutsch (1903–1942?), variously described as Austrian, Czech or Hungarian, was an academic who worked as a Soviet spy, best known for having recruited Kim Philby. Much of his life remains unknown or disputed.
Ernest Peter Burger Ernst Peter Burger (September 1, 1906 – October 9, 1975) was a German-American who was a spy and saboteur for Germany during World War II. He was captured but escaped execution. He was deported to Germany in 1948.