In this episode, former CIA historian and author Nicholas Reynolds discusses his recently released book "Need to Know: World War II and the Rise of American Intelligence" which details the birth of the first American spy service and the role of the original US codebreakers. Dr. Reynolds also reveals how WWII histories are researched and written and examines their continuing popularity. Recorded 11 Oct 2022. Interviewer: Jim Hughes, AFIO President and former CIA Operations Officer.