The Cold War was a showdown between two nuclear powers, and many experts believe that it was nearly miraculous that the period ended without catastrophic loss of life.Today, with nine nations possessing nuclear weapons and three other which may soon develop their own, the situation is more volatile still. Eric Schlosser joins Dorothy Wickenden to discuss why the world is in a nuclear arms race, what happened to the No Nukes movement, and whether significant reductions in arsenals are still possible.