In 1951 Guy Burgess and [[Donald Maclean]], another of the 'Five', fled to the Soviet Union on the eve of exposure. Philby was questioned by [[MI5]] and dismissed from the service, but maintained his front story, was eventually vindicated by British Prime Minister [[Harold Macmillan]] and reappointed to MI6, who made him station chief in [[Beirut]]. Again fearing exposure, he defected from Beirut to the Soviet Union in 1963. | In 1951 Guy Burgess and [[Donald Maclean]], another of the 'Five', fled to the Soviet Union on the eve of exposure. Philby was questioned by [[MI5]] and dismissed from the service, but maintained his front story, was eventually vindicated by British Prime Minister [[Harold Macmillan]] and reappointed to MI6, who made him station chief in [[Beirut]]. Again fearing exposure, he defected from Beirut to the Soviet Union in 1963. |