Howard Hughes - Glomar Explorer

In 1972, Hughes was approached by the CIA to help secretly recover Soviet submarine K-129 which had sunk near Hawaii four years earlier. Thus, the special-purpose salvage vessel Glomar Explorer was born. Hughes' involvement provided the CIA with a plausible cover story, having to do with civilian marine research at extreme depths and the mining of undersea manganese nodules. In the summer of 1974, Glomar Explorer attempted to raise the Soviet vessel.

However, during the recovery a mechanical failure in the ship's grapple caused half of the submarine to break off and fall to the ocean floor. This section is believed to have held many of the most sought-after items, including its code book and nuclear missiles. Two nuclear-tipped torpedoes and some cryptographic machines were recovered, along with the bodies of six Soviet submariners who were subsequently given formal burial at sea in a filmed ceremony. The operation, known as Project Azorian (but incorrectly referred to by the press as Project Jennifer), became public in February 1975 because burglars had obtained secret documents from Hughes' headquarters in June 1974. Though he lent his name to the operation, Hughes and his companies had no actual involvement in the project.