HIROSHIMA, JAPAN - AUGUST 05: The A-Bomb Dome stands near Hiroshima Peace Memorial Park, on the eve of the 66th anniversary of the Hiroshima atomic bombing on August 5, 2011 in Hiroshima, Japan. The world's first atomic bomb was dropped on Hiroshima on August 6, 1945 by the United States during World War II, killing an estimated 70,000 people instantly with many thousands more dying over the following years from the effects of radiation. Three days later another atomic bomb was dropped on Nagasaki. (Photo by Kiyoshi Ota/Getty Images)