The events leading to President Truman's decision to drop an atomic bomb on August 6, 1945, are recounted. Truman: Kenneth Welsh. Hirohito: Naohiko Umewaka. Stimson: Wesley Addy. Groves: Richard D. Masur. Anami: Koji Takahashi. Directed by Roger Spottiswoode and Koreyoshi Kurahara.