Union Station Massacre: The Original Sin of J. Edgar Hoover's FBI

Robert Unger delves into the FBI's own files regarding the 1933 massacre of four lawmen in Kansas City's Union Station parking lot. Unger reveals that the case that catapulted J. Edgar Hoover's FBI into national prominence was far less the Bureau's proud birth than its original sin. Tearing away 64 years of secrets and legends, Unger gives us the real story.