Today Tehran, Tomorrow the World

What's at stake in the dispute over Iranian nukes? Ultimately, human survival

Like many physicists who worked on the Manhattan Project, Richard Feynman could not get the Bomb out of his mind after the war. "I would see people building a bridge," he wrote. "And I thought, they're crazy, they just don't understand, they don't understand. Why are they making new things? It's so useless."

Feynman was convinced man had finally invented something that he could not control and that would ultimately destroy him. For six decades we have suppressed that thought and built enough history to believe Feynman's pessimism was unwarranted. After all, soon afterward, the most aggressive world power, Stalin's Soviet...

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