Now available to the public: 147 previously top secret files from the Security Service, or MI5, from Discovery: The National Archives.
Files on 'the Profumo Affair. They include Evgenyi Ivanov, the Soviet intelligence officer at the centre of the controversy, and Stephen Ward, the osteopath and portrait artist who was well connected with people of influence, before being tried and found guilty of living off immoral earnings.
There are also files on several people with links to the Cambridge spy ring, including Fred Warner, Jack Hewit, Victor and Tess Rothschild, and Goronwy Rees.
Thirteen files relate to John Vassall, the British civil servant who was jailed for spying for the Soviet Union, likely under threat of blackmail, and another selection of files on the Krogers, the suburban couple implicated in the Portland spy ring.'