Hiroshima's Legacy 75 Years Later

Thursday marks 75 years since the United States exploded an atomic bomb over the Japanese city of Hiroshima. Three days later, the U.S. carried out a similar attack on Nagasaki.

The bombings forced Japan to surrender, which ended World War II, but they also killed tens of thousands of Japanese and sparked the arms race.

Host Robin Young speaks with Here & Now security analyst Jim Walsh with the Massachusetts Institute of Technology's Security Studies Program about the first use of an atomic weapon and the state of nuclear weapons today.