1945年8月6日和8月9日,美国先后向日本的广岛和长崎投掷了两枚原子弹,这是人类战争史上惟一一次使用核武器的实例。今天,广岛、长崎上空的蘑菇云已经散去半个世纪之久,但它投在人们心中的阴影和忧虑却久久未能消失。战后,有关美国在二战期间悄悄研制核武器的秘闻,经西方各种传播媒体多次披露,已广为人知。然而,对于核灾 On August 6 and August 9, 1945, the United States dropped two atomic bombs on Hiroshima and Nagasaki in Japan. This is the only example of the use of nuclear weapons in the history of human war. Today, mushroom clouds over Hiroshima and Nagasaki have been dispersed for half a century, but the shadow and anxiety they cast in people’s hearts have not disappeared for a long time. After the war, the secret about the United States’ quiet development of nuclear weapons during World War II has been widely known by various media in the West for many times. However, for nuclear disaster