70 years after Hiroshima, opinions have shifted on use of atomic bomb Visitors look at a photograph of the area surrounding the Atomic Bomb Dome, captured after the atomic bomb was dropped in Hiroshima, Japan. Credit: Junko Kimura/Getty Images On Aug. 6, 1945, the United States dropped an atomic bomb on the Japanese city of Hiroshima, killing tens of thousands of people – many instantly, others fr