>"But a major problem with uranium bombs, Kristensen said, is the fact that the material happens to be the world’s heaviest naturally occurring element (twice a

>"But a major problem with uranium bombs, Kristensen said, is the fact that the material happens to be the world’s heaviest naturally occurring element (twice as heavy as lead). According to the Union of Concerned Scientists, a nuclear bomb needs about 33 pounds (15 kilograms) of uranium to be operational, a requirement that hinders how far a missile can travel. The bulkiness of uranium also makes it harder to mount the technology to existing missile systems." This is rubbish. 15 kgs is hardly what keeps a missile from travelling around athe world, it's the tamper, explosives and other assorted hardware (weighing around 1000 kgs for a crude device). >"Unlike uranium bombs, plutonium bombs are detonated using an 'implosion' method" More rubbish, uranium bombs can also be implosion designs, indeed most modern ones (primaries in thermonuclear bombs) are.