" The latter also confessed, the day preceding the bombardment of Nagasaki that there would be no more bombardment and "that the idea of killing 100,000 people was horrible." The Bombardment of Hiroshima and Nagasaki made the world realized the terrible power of the nukes and that such a crime cannot be repeated again.
To an addition, after world war two, in 1945, the Cold war started latter giving birth to the greatest arm race ever between the major superpowers, mainly; United States and Soviet Union in the early 1950s.6 During the arms race both United States and Soviet Union tested their nuclear weapon. However since the first atomic bombs, the nuclear weapons were upgraded to hydrogen, weighting millions tons of TNT whereas the first atomic bomb was 20,000 tons of TNT.7 If a bomb of 20,000 tons of TNT had caused enormous damage and deaths of about 200,000 civilians in Hiroshima, we could imagine what would have been the outcome of using a more powerful atomic bomb, the damages would be unbearable. Furthermore, the lust of power of the major powers leaded to the Cuban Missile Crisis in 1962, considered as the most dangerous crisis in war era. During the Cuban Missile Crisis the Soviet Union and the United States both threatened themselves of going in all-out-nuclear war. During thirteen days, there was a growing fear of a nuclear holocaust.8 What would have been the result of these two states confronting themselves in a nuclear war? This would have been Mutual Assured Destruction. Without an agreement of the two states on 28 October, the world would have surely experience the worst war ever. Hence we can understand why nuclear pessimists such as Sagan are so reluctant about nuclear weapons.
Besides according to Scott Sagan, the proliferation of nuclear weapons may worsen the actual situation. According to him, nuclear weapons proliferation may lead into nuclear war, there are risks of detonating a nuclear bomb by mistake and risk might of nuclear terrorism if nukes fall in the hands of the third world states.
