When did the double agent who was recruited by Arnold Deutsch defect to the Soviet Union ?
Kim Philby Harold Adrian Russell "Kim" Philby (1 January 1912 – 11 May 1988) was a high-ranking member of British intelligence who worked as a double agent before defecting to the Soviet Union in 1963. He served as both an NKVD and KGB operative.
Vladimir Aleksandrovich Pozner Vladimir Aleksandrovich Pozner (Russian: Влади́мир Алекса́ндрович По́знер ), (1908—1975) was a Russian Jewish émigré to the United States. During World War II he spied for Soviet intelligence while being employed by the United States Government.