From the ancient Greek and Roman origins of human intelligence and its use in the Catholic church to Francis Walsingham's Elizabethan secret service to the birth of the surveillance state in today's digital hi-tech age, Colonel John Hughes-Wilson, author of the highly successful Military Intelligence Blunders, gives an extraordinarily broad and wide-reaching perspective on espionage and intelligence, providing an up-to-date analysis of its importance of intelligence and in the recent past. Drawing upon a variety of sources, ranging from first-hand accounts to his own personal experience, Hughes-Wilson covers everything from undercover agents to photographic reconnaissance to today's much misunderstood cyber welfare.Authoritative and analytical, Hughes-Wilson searches for hard answers and scrutinizes why crucial intelligence is so often ignored, misunderstood, or spun by politicians and seasoned generals alike. From yesterday's spies to tomorrow's cyber world, The Secret State is a fascinating and thought--provoking history of this ever--changing and ever--important subject.