Crime, Espionage, pic: circa 1955, Kim Philby pictured in London at a press conference, where he denied he was the infamous "third man" who tipped off British spies Burgess and McLean as they were about to be arrested, Harold "Kim" Philby defected to the [Getty Images]

Crime, Espionage, pic: circa 1955, Kim Philby pictured in London at a press conference, where he denied he was the infamous "third man" who tipped off British spies Burgess and McLean as they were about to be arrested, Harold "Kim" Philby defected to the Soviet Union in 1963, after a career in British Intelligence (Photo by Popperfoto via Getty Images/Getty Images) — see more

Crime, Espionage, pic: circa 1955, Kim Philby pictured in London at a press conference, where he denied he was the infamous "third man" who tipped off British spies Burgess and McLean as they were about to be arrested, Harold "Kim" Philby defected to the Soviet Union in 1963, after a career in British Intelligence (Photo by Popperfoto via Getty Images/Getty Images)