study of the Strategic Air Command documents indicates that Alert Force test flights in February 1958 with the older Mark 15 payloads were not authorized to fly with nuclear capsules on board. Such approval was pending deployment of safer "sealed-pit nuclear capsule" weapons, which did not begin deployment until June 1958. Recovery efforts Starting on February 6, 1958, the Air Force 2700th Explosive Ordnance Disposal Squadron and 100 Navy personnel equipped with hand-held sonar and galvanic drag and cable sweeps mounted a search. On April 16, the military announced the search had been unsuccessful. Based on a hydrographic survey in 2001, the bomb was thought by the Department of Energy to lie buried under of silt at the bottom of Wassaw Sound. In 2004, retired Air Force Lt. Colonel Derek Duke claimed to have narrowed the possible resting spot of the bomb down to a small area approximately the size of a football field. He and his partner located the area by trawling in their boat with a Geiger counter in tow. Secondary radioactive particles four times naturally occurring levels were detected and mapped, and the site of radiation origination triangulated. An Air Force nuclear weapons adviser speculated that the source of the radiation was natural, originating from monazite deposits. Ongoing concerns As of 2007, no undue levels of unnatural radioactive contamination have been detected in the regional Upper Floridan aquifer by the Georgia Department of Natural Resources (over and above the already high levels thought to be due to monazite, a locally occurring mineral that is naturally radioactive). In popular culture In February 2015, a fake news web site ran an article stating that the bomb was found by vacationing Canadian divers and that the bomb had since been removed from the bay. The fake story spread widely via social media. The MonsterVerse graphic novel Godzilla Dominion has the Titan Scylla find the sunken warhead off the coast of Savannah, Georgia, having sensed its radiation as a potential food source, only for Godzilla and the US Coast Guard to drive her into a retreat and safely recover the bomb. See also Broken Arrow List of military nuclear accidents Notes References Michael H. Maggelet and James C. Oskins (2008). "Broken Arrow: The Declassified History of U.S. Nuclear Weapons Accidents". Lulu. . External links America's Lost H Bomb, Marabella Productions & Discovery's Science Channel documentary about the Tybee Bomb (2007) NPR,