Tim Weiner discussed Enemies: A History of the FBI, his book on the FBI’s 100-year hidden history of war against terrorists, spies, and ultimately any person or group deemed subversive. He revealed secretly taped conversations FBI Director J. Edgar Hoover had with Presidents Kennedy, Johnson, and Nixon. He wrote about the agency’s predominantly illegal secret intelligence and surveillance techniques such as wire-tapping, break-ins, and burglaries. He researched recently declassified documents that included Mr. Hoover’s personal intelligence files. He scrutinized over 200 oral histories of current and former FBI agents. 
In this interview Mr. Weiner discussed his early career as a reporter, including his Kansas City Times' coverage of the 1981 collapse of an atrium skywalk at the Hyatt Hotel, which won him and his team a Pulitzer Prize. His second Pulitzer was received for investigative journalism on black budget spending while employed by the Philadelphia Inquirer.