 Some details of the action were leaked to a British Member of Parliament, Tam Dalyell, in 1985 by the senior civil servant Clive Ponting, resulting in the unsuccessful prosecution of the latter under the Official Secrets Act 1911.The documents revealed that " General Belgrano" was sailing away from the exclusion zone when she was attacked and sunk.In May 1983, Thatcher appeared on "Nationwide", a live television show on BBC1, where a teacher, Diana Gould, questioned her about the sinking, saying that the ship was already west of the Falklands and heading towards the Argentinian mainland to the west.