Science: Fallout from Cannikin

The Atomic Energy Commission's announcement that it planned to test a multimegaton nuclear device under the Aleutian island of Amchitka last November touched off a shock wave of protest. Some critics charged that the explosion of an H-bomb in a region that was already known to be seismically active could trigger devastating quakes and the great sea waves, known as tsunamis, that often follow them. Environmentalists made dire predictions of a wildlife massacre. Nonetheless, the test took place, and it did not cause serious tremors or lasting environmental damage. Instead, after months of...

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