DECLASSIFIED: Former CIA Officer Marc Polymeropoulos on the Triple Agent

In this episode of Intelligence Matters, host Michael Morell interviews Marc Polymeropoulos, former senior CIA intelligence service officer who had a 26-year career in public service. Marc looks back to the day that seven service members were lost to suicide bomber Humam al-Balawi, who at the time, was working as a double agent. Marc talks about why it was important to interview al-Balawi in person, the mistakes that were made, and what important lessons he still keeps with him.