"Administration aides say they can’t make the details public because the negotiations are still going on with multiple countries at once; if for example, Vietnam knew what the American bottom line was with Japan, that might drive them to change their own terms. Trade might not seem like a national security issue, they say, but it is (and foreign governments regularly try to hack their way in to American trade deliberations)."
Delgado says he doesn't know how many drums of radioactive material are buried within the ship — perhaps a few hundred. But he is doubtful that they pose any health or environmental risk. The barrels were filled with concrete and sealed in the ship's engine and boiler rooms, which were protected by thick walls of steel. The carrier itself was clearly "hot" when it went down and and it was packed full of fresh fission products and other radiological waste at the time it sank. The Independence was scuttled in what is now the Gulf of the Farallones sanctuary, a haven for wildlife, from white sharks to elephant seals and whales. Despite its history as a dumping ground Richard Charter says the radioactive waste is a relic of a dark age before the enviornmental movement took hold. "It's just one of those things that humans rather stupidly did in the past that we can't retroactively fix.""