Dr. Priess discusses his service immediately post-9/11 briefing Attorney General John Ashcroft and FBI Director Robert Mueller. He also provides insight into "guidelines" briefers received, the tense, important experience, and his motivation to capture some of it in his 2016 book "The President’s Book of Secrets." Recorded 18 Sept 2020. Interviewer: William Richardson, AFIO Board and former CIA Analyst. Host: James Hughes, AFIO President and former CIA Operations Officer.