Yet the secrecy surrounding these programs obscures most public debate about the wisdom of using them, or the risks inherent in losing control of them. The government’s silence about America’s new arsenal, and its implications, poses a sharp contrast to the first decades of the nuclear era. The horrific scenes of destruction at Hiroshima and Nagasaki not only seared the national psyche, but they made America’s destructive capabilities—and soon Russia’s and China’s—obvious and undeniable. Yet even while the government kept the details classified—how to build atomic weapons, where they are
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