The FBI dug a tunnel under the Russian embassy

The CIA and the FBI famously weren't talking to each other in the lead-up to 9/11. This is the story of why. Supervising producer Kara Jensen-McKenna tells Matt about a decades-long secret FBI operation underneath the streets of Washington which ended in one of the most extraordinary betrayals in American intelligence history.Listen to Matt on No One Saw it Coming on the ABC Listen AppFollow If You're Listening on the ABC Listen app.Check out our series on YouTube: https://www.youtube.com/playlist?list=PLDTPrMoGHssAfgMMS3L5LpLNFMNp1U_Nq