The anniversaries of the atomic bombings of Hiroshima and Nagasaki present an opportunity to demolish a cornerstone myth of American history—that those twin acts of mass civilian slaughter were necessary to bring about Japan’s surrender, and spare a half-million U.S. soldiers who’d have otherwise died in a military conquest of the empire’s home islands. Those who attack this mythology are often reflexively dismissed as unpatriotic, ill-informed or both. However, the most compelling witnesses against the conventional wisdom were patriots with a unique grasp on the state of affairs in August...
