hiroshima

A student participates in a peace rally to commemorate the 68th anniversary of the atomic bombings of the Japanese cities of Hiroshima and Nagasaki, in Mumbai August 6, 2013. REUTERS/Danish Siddiqui (INDIA - Tags: ANNIVERSARY SOCIETY TPX IMAGES OF THE DAY)

Danish Siddiqui/Reuters

A student in Mumbai, India takes part in a peace rally on Tuesday to commemorate the 68th anniversary of the atomic bombings of the cities of Hiroshima and Nagasaki in JapanRead more

People offer prayer for atomic bomb victims at a cenotaph at the Hiroshima Peace Memorial Park in Hiroshima, western Japan, 06 August 2013 after the Peace Memorial Ceremony commemorating the 68th anniversary of the atomic bombing of the city  in 1945.

Kimimasa Mayama/EPA

People offer prayer for atomic bomb victims at a cenotaph at the Hiroshima Peace Memorial Park in Hiroshima, western Japan on Tuesday after the Peace Memorial Ceremony commemorating the 68th anniversary of the atomic bombing of the city in 1945.

The Atomic Bomb Dome is silhouetted at sunset in Hiroshima, western Japan,  Monday, Aug. 5, 2013. Hiroshima marks the 68th anniversary of the world's first atomic bombing Tuesday.

Shizuo Kambayashi/AP

The Atomic Bomb Dome is silhouetted at sunset in Hiroshima, western Japan, on Monday, eve of the 68th anniversary of the world’s first use of nuclear weapons in war