The U.S. atomic bombings of Hiroshima and Nagasaki are extensively taught at schools in Japan and abroad, but many rarely have a chance to hear survivors' stories firsthand — what civilians saw, smelled and felt under the mushroom clouds.

Hoping to pass on such detailed personal experiences to potential future leaders in the U.S. and other countries, Hiroshima hibakusha Keiko Ogura, 80, traveled to Boston in late May and shared her experience in English with around 120 students at leading universities — Harvard University, the Massachusetts Institute of Technology and Tufts University.

Ogura said she wanted to share her story with those who have business or political leadership aspirations to help increase their awareness of the gravity of nuclear weapons.