FILE - This is a Sunday, June 6, 1982 file photo of U.S. President Ronald Reagan and Britain's Prime Minister Margaret Thatcher at the lunch table, at the Palace of Versailles, France. Declassified documents revealed Friday Jan. 3, 2014 how British spies hunted in vain for the creator of a fake recording of British Prime Minister Margaret Thatcher and U.S. President Ronald Reagan. Soviet spies and Argentine agents were considered, but an anarchist punk band later claimed responsibility. The tape, sent to Dutch newspapers in 1983, purported to capture the leaders sparring during the 1982 Falklands War. A transcript shows Reagan urging Thatcher ''to control yourself," and the British leader responding: "We have to use violence" against Argentina. British authorities quickly identified the recording as a forgery. A Foreign Office adviser said the MI6 intelligence agency had considered Soviet or Argentine agents and British leftists as possible culprits. (AP Photo/ File)