Twelve-year old Sadae Kasaoka (birth name Hiraoka), a first-year student at a girls’ high school, was at home with her grandmother on Aug. 6, 1945, enjoying a beautiful morning and doing housework because she had not been mobilized for war work.

On the 80th anniversaries of the Hiroshima and Nagasaki bombings, survivors continue searching for remains and healing—and Americans remain divided over whether the bombings were justified.

On Aug. 6, 1945, the U.S. dropped an atomic bomb on Hiroshima and three days later, dropped another one on Nagasaki.