[简答题]

To most of us, nuclear is an all-or-nothing word. Nuclear war is unthinkable. Nuclear weapons must never be used. Nuclear power plants must be perfectly safe. (1) Nuclear meltdown is the end of the world, and "Going nuclear" means you’ve hit the fatal button, and there’s no turning back.
The crisis in Japan is teaching us that this isn’t true. Nuclear safety, like nuclear doom, is never certain. Too many things can go wrong. And then, just when catastrophe seems inevitable, things can go right. (2) Our challenge in managing the current crisis, and in preparing for the next one, is to broaden our options. We can’t anticipate or prevent every scenario. But we can give ourselves a fighting chance.
(3) Two days ago, I spoke highly of the reactor containment at the Fukushima Daiichi (福岛) power plant for surviving the earthquake and tsunami that knocked out their primary and backup cooling system. "Everything t

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