The Hiroshima bomb is the most devastating to have been used in real combat. But today’s nuclear weapons are far, far more powerful

Japan marked 80 years since the atomic bombing of Hiroshima on Wednesday with a ceremony reminding the world of the horrors unleashed, as saber-rattling between the United States and Russia keeps the nuclear “Doomsday Clock” close to midnight.

Kazumi Matsui said the conflicts in Ukraine and the Middle East meant a growing acceptance of nuclear weapons.