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Crewmen aboard the Enola Gay gave their first interviews. “The crew said, ‘My God,’ and couldn’t believe what had happened,” said weaponeer William Parsons. “A mountain of smoke was going up in a mushroom with the stem coming down. At the top was white smoke but up to 1,000 feet from the ground there was swirling, boiling dust.” General Carl Spaatz, one of the army air forces’ top officials, called the atomic bomb “the most revolutionary development in the history of the world.
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A.J. Baime (The Accidental President: Harry S. Truman and the Four Months That Changed the World)