Science: Problem in Security

Atomic authorities are still baffled by Scientist-Spy Klaus Fuchs, who has been locked in his British prison for twelve months of his 14-year sentence. As a trusted insider in both U.S. and British atom-bomb laboratories, Fuchs had an enormous amount of secret and vital information. He insists that he transmitted his knowledge to the Russians. If he did, the secrets might as well be published openly, with benefit to all Western scientists.

But did he? Who can be sure? Fuchs was a theoretical physicist (one of the best), and the matters he dealt with were abstract and difficult. It is hard to...

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