Why did Fuchs take such a huge gamble by sharing US nuclear secrets with the Soviets? Was Oppenheimer's fellow physicist seeking peace - or war? Charlie Higson talks to Frank Close, an author and physicist, about Fuchs' decision and its impact on the course of history.Listen to The Spy Who ad-free on Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting <a href="https://wondery.com/links/the-spy-who/" rel="noopener noreferrer" target="_blank">wondery.com/links/the-spy-who</a> now. See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank">https://art19.com/privacy#do-not-sell-my-info</a>.

The Spy Who Putin Poisoned | End of an Era | 1

These are stories you were never meant to hear. The invisible but vital work of the world’s intelligence services: secret operatives playing to very different rules. The Spy Who, hosted by Indira Varma and Raza Jaffrey, takes you deep inside that shadow world to meet spies who risked everything in the national interest – or, sometimes, their own.Listen to The Spy Who ad-free on Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting wondery.com/links/the-spy-who now.&nbsp;