1956: Mystery of missing frogman deepens

British Prime Minister Sir Anthony Eden has refused to reveal the details surrounding the disappearance of a naval diver during a goodwill visit by the Soviet leadership.But he told a packed House of Commons “the appropriate disciplinary steps” were being taken – heightening speculation that Commander Lionel “Buster” Crabb was on a secret spying mission for which permission had not been granted.

Commander Crabb was reported missing, presumed dead, by the Admiralty on 29 April. The official statement said he had died following a test dive at Stokes Bay, near Portsmouth, on the Hamp