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.

TOKYO -- The atomic bombings of Hiroshima on August 6, 1945, and Nagasaki three days later brought a scale of destruction the world had never seen. Many who survived the blasts died in the weeks, months and years that followed. Japan surrendered six days after the Nagasaki bombing, bringing an end to World War II.