Alex Rosen: 'Either we get rid of the bombs, or they get rid of us'

The world is marking the 75th anniversary of the US bombing of Hiroshima in Japan, the first atomic attack that killed more than 140,000 people in August 1945. Will the world ever be free of nuclear weapons? Brent Goff asked Alex Rosen, the chairman of the German chapter of International Physicians for the Prevention of Nuclear War.