This is a continuation of what we started in episode 100 of Target USA. In a rare interview, retired CIA officer Mark Kelton reveals details about his days behind the Iron Curtain and why Russia is a foe that is just as dangerous today as it was at the height of the Cold War. In this episode, Kelton tells us about his work helping Pakistan track down Osama bin Laden and how he contracted a mysterious, yet-to-be-explained illness during that process. He also issues a warning to U.S. officials leading the fight against terrorists today.