On August 6, 1945 at 8:15 AM, US forces dropped a new kind of bomb—one which harnessed the very power of the sun—on the Japanese city of Hiroshima. The devastation was total and unprecedented: some 70,000 Japanese died in the blast and tens of thousands more by year’s end. The event marked the start of new era in international politics and of a long-running public debate that continues today. Did President Truman make the right decision? Was the atomic bombing of Hiroshima (and later Nagasaki) moral or immoral? In this episode, Robert Nicholson sits down with McDonald Scholar of Ethics, War, and Public Life Marc LiVecche to talk through these questions in light of the historical record. Decades of study have led LiVecche to rule Truman’s decision the best moral choice in light of the alternatives—but this conclusion seems more controversial than ever. Walking through arguments and counter-arguments, LiVecche responds to some of the more common objections and makes the case—carefully but confidently—that the use of atomic weapons in 1945 was indeed necessary and just. Stick around for the end for scattered musings on what it all means for American foreign policy today. Send comments and questions to jdiddams@theird.org or snipe directly at: mlivecche@providencemag.com