Today, we talk to Bill Evanina, about his distinguished career in U.S. law enforcement and intelligence. He discusses his journey from an FBI agent to leadership roles in counterintelligence at the FBI, CIA, and as the head of the National Counterintelligence and Security Center (NCSC). Evanina shares detailed accounts of high-profile cases, cultural differences between agencies, and insights into the evolving landscape of espionage, particularly concerning China and Russia, and the politicization of intelligence.