It was a scientific discovery that changed the world forever. The nuclear bomb was largely a brainchild of left wing scientists who were determined Nazi Germany would not win the race to build this terrible weapon. The recent Hollywood biopic focuses on the role of Robert Oppenheimer in this fascinating period in history, the man who led the team working under the direction of the American government in this top secret project, who would become a prominent victim of the McCarthyite purges in the 1950s. 

In this podcast, Luke Cooper and Zoe Williams talk to LSE professor and Another Europe Is Possible member, Mary Kaldor, about this fascinating history. While she never met Oppenheimer himself, Kaldor met a number of other figures in the film and others that didn't make it into the script, particularly at the Pugwash conferences on disarmament that created a unique space for dialogue between scientists on either side of the Cold War divide.