This was the most popular episode of 2020. Apparently, people are interested in the views of former GCHQ Director, Joint Intelligence Committee Chair, and first UK Security and Intelligence Coordinator on, well - how spies think. I am sure David – now a Visiting Professor at Kings College, London – has a few thoughts on the subject. Hear Andrew debrief this week’s guest on the insights derived from a career spent at the summit of British intelligence. 1 Book, 2 Glaswegians, 10 Lessons in Intelligence. It’s simple, really. Sláinte!