Watch the video: TSAR Bomba, the Most Powerful Nuclear Weapon Ever Detonated
This nuclear arms race was matched by similar competition over space and the race to the moon. Most people believe that the world will become a more dangerous one as nuclear weapons spread. The chances that nuclear weapons will be fired in anger or accidentally exploded in a way that prompts a nuclear exchange are finite, though unknown. Those chances increase as the number of nuclear states increase. More is therefore worse. Most people also believe that the chances that nuclear weapons will be used vary with the character of the new nuclear states—their sense of responsibility, inclination toward devotion to the status quo, political and administrative competence.