Sunday marked 72 years since the U.S. dropped one of two atomic bombs on Japan. On the eve of the anniversary, organizers of a peace event lit up torches on floats on the Motoyasu River next to the Atomic Bomb Dome in Hiroshima.

Sunday marked 72 years since the U.S. dropped one of two atomic bombs on Japan. On the eve of the anniversary, organizers of a peace event lit up torches on floats on the Motoyasu River next to the Atomic Bomb Dome in Hiroshima. Mari Yamaguchi/AP …
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