A sense of responsibility toward survivors of the atomic bombings of Hiroshima and Nagasaki has led a U.S. man on a lifelong journey, working to achieve the abolition of nuclear weapons and using poetry to communicate their dangers.

David Krieger, 75, is the president and founder of the nonprofit organization Nuclear Age Peace Foundation, which was launched in 1982 to campaign for a world free of nuclear weapons.

Its advisory council includes several Nobel laureates, as well as academic and activist Noam Chomsky and Hiroshima hibakusha Setsuko Thurlow.