"Oppenheimer: A Complex Legacy of Power, Guilt, and Pain"
J. Robert Oppenheimer, known as "the father of the atomic bomb," expressed regret and a sense of guilt to President Harry S. Truman after the bombings of Hiroshima and Nagasaki. Oppenheimer believed the bombing of Nagasaki was unnecessary and unjustified. Truman, privately infuriated by Oppenheimer's remorse, dismissed him as a "crybaby scientist." The meeting between the two was Oppenheimer's missed opportunity to avert a potential nuclear arms race. The renewed interest in Oppenheimer's life and legacy is fueled by the release of Christopher Nolan's film "Oppenheimer" and the relevance of nuclear weapons in today's world.