Otto Hahn's grandson visits Hiroshima

HIROSHIMA, Japan - Dietrich Hahn, a 67-year-old journalist and grandson of Otto Hahn, the German chemist who won the Nobel Prize in Chemistry for the discovery of nuclear fission, delivers a speech in Hiroshima on the night of Sept. 30, 2013. Earlier in the day, Hahn met survivors of the 1945 U.S. atomic bombing of the western Japanese city and offered flowers at the cenotaph for the victims of the attack.