When the atomic bombs were dropped on Hiroshima and Nagasaki in August 1945, Ari Beser’s grandfather was on board both of the American B-29 bombers that carried the weapons. On the ground, Kosuzu Harada’s grandfather survived both attacks.
Neither of the men — U.S. radar specialist Jacob Beser and Japanese engineer Tsutomu Yamaguchi — met during their lives. But both became staunch advocates of nuclear abolishment.
