After the hibakusha: the future of Japan's anti-nuclear movement

Activists calling for the abolition of nuclear weapons have long relied on the powerful testimonies of atomic bomb survivors, or hibakusha, to grow their movement. But with ever fewer people to offer that testimony, both the hibakusha and activists know those days are running out. NHK World's Yoshida Mayu speaks to different generations who have a common goal: a world without nuclear weapons.