Although nuclear disarmament seems to have ground to a halt, the world's 15,500 nuclear weapons remain exceptionally dangerous, enormously costly, and a spur to the development of nuclear weapons by other nations.  Unilateral action to reduce nuclear arsenals has been taken numerous times in the past by nations, including the United States, with no adverse consequences.  With even the U.S. Joint Chiefs of Staff in favor of such action, why not try it again?