Hiroshima Mayor Kazumi Matsui stressed the need to “not be resigned to pessimism” as conflicts across globe prompt growing focus on nuclear deterrence.

I'm Alex Wellerstein. I'm a nuclear historian. I'm here today to answer your questions from the internet. This is Nuclear History Support. [upbeat music] All right, first up, we have one from ...

The breakdown of nuclear diplomacy, misleading talk of ‘limited’ nuclear war and a lack of public awareness have produced a dangerously heightened risk.