There are currently eight declared (and acknowledged) nuclear weapons states. More are suspected. And even more are equiped with chemical or biological weapons. Here are profiles on the status of nations' WMD cababilities.


Nuclear Threat Initiative
FAS
Trinity Atomic Website
misc. website
Nuclearfiles: Nuclear Stockpiles
CEIP: World Map of Military Fissile Material and Nuclear Weapons Programs


US Nuclear Weapons Stockpile Stewardship debate, c/- MIT's Program in Science, Technology and Society