U.S. nuclear weapons complex

As internal tests and analyses have shown, the Department of Energy cannot adequately protect America's voluminous stockpile of weapons grade nuclear material, which is housed at 13 locations throughout the country. In the post-9/11 era, we know that suicidal terrorists are capable of massive attacks -- the worst possible scenario would be terrorists penetrating a nuclear facility and building an improvised nuclear bomb, which could have a similar force of the Hiroshima blast.