The British spy agency MI5 recruited Willie Carlin to infiltrate Sinn Fein in Northern Ireland. He spied on the group for 11 years until his cover was blown.   Check out I Spy's merch by going to https://store.dftba.com/collections/i-spy Save 15% on FP subscriptions. Visit <a href="https://foreignpolicy.com/subscribe/">https://foreignpolicy.com/subscribe/</a> and enter code ISPY at checkout to claim this offer. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

The Hellraiser

Spies don’t talk—it’s the cardinal rule of the business. But on Foreign Policy’s podcast I Spy, we get them to open up. We hear from the operations people: the spies who steal secrets, kill adversaries, and turn agents into double agents. Each episode features one spy telling one dramatic story.