The award-winning author made the following remarks at a symposium at CIA Headquarters on 26 October 1993: "Most of what I have to say here about our common interest, the subject of intelligence, can be found in the two books, 'Most Secret War (or The Wizard War)' and 'Reflections on Intelligence', which you already have. And, if there are matters arising from them on which you would like to question me, I shall be glad to respond. Compared with some of you, though, I spent a relatively few years in full-time intelligence, and most of my experience was gained around 50 years ago. I therefore address you with some diffidence."
Center for the Study of Intelligence: https://www.cia.gov/library/center-for-the-study-of-intelligence/index.html
Studies in Intelligence (1995), v.38 no.5