j. robert oppenheimer.his is oppenheimer speaking shortly after the first bomb was tested in southern new mexico in 1945. >> i have been asked whether in the years to come in will be possible to kill 40 million american people in the 20 largest american towns by the use of atomic bombs in a single night. i am afraid the answer to that question is yes. >> to robert oppenheimer would later say, "i am the shudder of world's." less than a month after the first atomic bomb test, the u.s. dropped a uranium bomb known as little boy over the japanese city of hiroshima, killing up to 130,000 people. three days later, fat man, a plutonium bomb, was detonated over nagasaki. later in his life, j. robert oppenheimer, often called the father of the atomic bomb, warned the public about its terrifying power. in a 1965 television broadcast he reflected on witnessing the first test nuclear explosion 20 years earlier. >> people laughed and people cried. i remember reading from the hindu scripture, "the destroyer of debt, a de