 During Oxford and post-Oxford years, he volunteered and worked in a variety of positions, including as a paramilitary ambulance unit member during the 1956 Hungarian Revolution, as a private tutor to the Crown Prince of Nepal, as a worker in a leper colony in Biafra, and as a trainer for ex-head-hunter tribes undergoing re-training in the Venezuelan rain forest.However, he chose documentary filmmaking, and investigative journalism as his career.As a BBC Special Correspondent to the former USSR, he reported news events such as the first cosmonauts' homecoming and Fidel Castro's state visit, and was the first person from west of the Iron Curtain since the Russian Revolution of 1917 to travel voluntarily among the nomadic reindeer tribes of Arctic Siberia and the Gulag.