By now everyone has seen the videos of explosions at Japan's crippled Fukushima Daiichi nuclear plant and the aerial photos of what looks like the result of a World War ii bombing.

如今，人们通过影像目睹了日本福岛受损的第一核电站所发生的爆炸，并通过航拍照片见识了状似经历了二战轰炸后的图景。

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Right now, America and Russia hold thousands of nuclear war heads that can be launched from one continent to another.

现在，美国和俄罗斯就拥有数千可以从一个大陆打到另一个大陆的核弹头。

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The people who design America's nuclear bombs believe they helped win the cold war. But now that the war is over, many wonder whether they'll end up out in the cold.

设计美国核弹的人相信他们帮忙打赢了冷战，可是既然冷战已经结束，很多人不知道他最终会不会受到冷落。

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For his part, Mr Obama has made it clear that he would countenance war only if Iran were building a nuclear weapon, which his intelligence chiefs do not now think is the case.

ECONOMIST: Iran

We now know enough to be reasonably confident that such action would have led to nuclear war.

BBC: The speeches written but never given

Nuclear deterrence, this school of thought asserts, was shown to work globally in the cold war and can now be expected to work regionally.

ECONOMIST: The ostrich��s view of the world