Hiroshima anniversary

A U.S. representative participated for the first time Friday in Japan's annual commemoration of the American atomic bombing of Hiroshima, in a 65th anniversary event that organizers hope will bolster global efforts toward nuclear disarmament.

U.S. Ambassador to Japan John Roos, looking upward, takes part in the 65th anniversary of the world's first atomic bombing in the Hiroshima Peace Memorial Park in Hiroshima, western Japan, Friday, Aug. 6, 2010. The United States sent its first ever delegation to the ceremony marking the anniversary of the attacks. (AP Photo/Kyodo News, Shigeyuki Inakuma)

U.S. Ambassador to Japan John Roos, looking upward, takes part in the 65th anniversary of the world's first atomic bombing in the Hiroshima Peace Memorial Park in Hiroshima, western Japan, Friday, Aug. 6, 2010. The United States sent its first ever delegation to the ceremony marking the anniversary of the attacks. (AP Photo/Kyodo News, Shigeyuki Inakuma)

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