John Dunn

John Dunn is a former officer of MI5, the British security service. He has written extensively on the history of espionage and counter-intelligence. Dunn has worked in the intelligence community for many years and has been involved in several high-profile operations. He is known for his expertise on the history of espionage and counter-intelligence in the UK. Dunn has also written several books on the subject, including a memoir about his time in MI5.