 He was revealed as a spy for the Soviet Union according to the records furnished by Vasili Mitrokhin, who arrived in the West after the Cold War.The widow of the late Labour MP angrily denied the accusation that he was a Russian spy and claimed that he had, in fact, carried out missions for MI6.Catherine Fletcher maintained that not only was her husband an anti-Communist, but he had been asked to use his left-wing influence on behalf of Margaret Thatcher when she was Prime Minister to persuade Bettino Craxi to stand for the post of Italian premier.