Veteran journalist Chris Wallace scrutinizes the 116 days between President Franklin D. Roosevelt's death and Harry S. Truman's order to drop an atomic bomb on Hiroshima. Wallace describes the trajectory of the new president from untested to history-maker. Along the way, readers learn insights into scientists like Einstein and Oppenheimer, as well as soldiers and ordinary civilians in the US and Japan. "…reads like a tense thriller." -The Washington Post