The Case of the Missing H-Bomb: The Pentagon Has Lost the Mother of All Weapons

The cover-up continues. The Air Force, however, has told local residents and the congressional delegation that there was nothing to worry about.

"We've looked into this particular issue from all angles and we're very comfortable," said Major Gen. Franklin J. "Judd" Blaisdell, deputy chief of staff for air and space operations at Air Force headquarters in Washington. "Our biggest concern is that of localized heavy metal contamination."

The Air Force even has suggested that the bomb itself was not armed with a plutonium trigger. But this contention is disputed by a number of factors. Howard Dixon, a former Air Force sergeant who specialized in loading nuclear weapons onto planes, said that in his 31 years of experience he never once remembered a bomb being put on a plane that wasn't fully armed. Moreover, a newly declassified 1966 congressional testimony of W.J. Howard, then assistant secretary of defense, describes the Tybee Island bomb as a "complete weapon, a bomb with a nuclear capsule." Howard said that the Tybee Island bomb was one of two weapons lost up to that time that contained a plutonium trigger.

Recently declassified documents show that the jettisoned bomb was an "Mk-15, Mod O" hydrogen bomb, weighing four tons and packing more than 100 times the explosive punch of the one that incinerated Hiroshima. This was the first thermonuclear weapon deployed by the Air Force and featured the relatively primitive design created by that evil genius Edward Teller. The only fail-safe for this weapon was the physical separation of the plutonium capsule (or pit) from the weapon.

In addition to the primary nuclear capsule, the bomb also harbored a secondary nuclear explosive, or sparkplug, designed to make it go thermo. This is a hollow plug about an inch in diameter made of either plutonium or highly enriched uranium (the Pentagon has never said which) that is filled with fusion fuel, most likely lithium-6 deuteride. Lithium is highly reactive in water. The plutonium in the bomb was manufactured at the Hanford Nuclear Site in Washington State and would be the oldest in the United States. That's bad news: Plutonium gets more dangerous as it ages. In addition, the bomb would contain other radioactive materials, such as uranium and beryllium.

The bomb is also charged with 400 pounds of TNT, designed to cause the plutonium trigger to implode and thus start the nuclear explosion. As the years go by, those high explosives are becoming flaky, brittle and sensitive. The bomb is most likely now buried in 5 to 15 feet of sand and slowly leaking radioactivity into the rich crabbing grounds of the Warsaw Sound. If the Pentagon can't find the Tybee Island bomb, others might. That's the conclusion of Bert Soleau, a former CIA officer who now works with ASSURE, the salvage company. Soleau, a chemical engineer, said that it wouldn't be hard for terrorists to locate the weapon and recover the lithium, beryllium and enriched uranium, "the essential building blocks of nuclear weapons." What to do? Coastal residents want the weapon located and removed. "Plutonium is a nightmare and their own people know it," said Pam O'Brien, an anti-nuke organizer from Douglassville, Georgia. "It can get in everything--your eyes, your bones, your gonads. You never get over it. They need to get that thing out of there."

The situation is reminiscent of the Palomares incident. On January 16, 1966, a B-52 bomber, carrying four hydrogen bombs, crashed while attempting to refuel in mid-air above the Spanish coast. Three of the H-bombs landed near the coastal farming village of Palomares. One of the bombs landed in a dry creek bed and was recovered, battered but relatively intact. But the TNT in two of the bombs exploded, gouging 10-foot holes in the ground and showering uranium and plutonium over a vast area. Over the next three months, more than 1,400 tons of radioactive soil and vegetation was scooped up, placed in barrels and, ironically enough, shipped back to the Savannah River Nuclear Weapons Lab, where it remains. The tomato fields near the craters were burned and buried. But there's no question that due to strong winds and other factors much of the contaminated soil was simply left in the area. "The total extent of the spread will never be known," concluded a 1975 report by the Defense Nuclear Agency.

The cleanup was a joint operation between Air Force personnel and members of the Spanish civil guard. The U.S. workers wore protective clothing and were monitored for radiation exposure, but similar precautions weren't taken for their Spanish counterparts. "The Air Force was unprepared to provide adequate detection and monitoring for personnel when an aircraft accident occurred involving plutonium weapons in a remote area of a foreign country," the Air Force commander in charge of the cleanup later testified to Congress.