The blockbuster film, Oppenheimer, is sweeping the cinema world, and has become an historical event in itself. Professor Philip Nash discusses the life and work of J. Robert Oppenheimer, and we analyze his significance. We also review the film. Most importantly, we show how all of this is _extremely_ relevant to today’s fraught political and scientific atmosphere. The dangers shown in the Oppenheimer story can teach us a lot about the dangers we face now. Episode 521.