...Bart Bechtel for instance - an ex-CIA operations officer, a specialist in domestic and international terrorism matters and a US Navy veteran with 31 years of espionage and counter-intelligence experience - a spy to his fingertips.

It was Bart Bechtel who decided to organise a seminar for spooks - past, present and future - and their wives, girlfriends and interested parties.

But instead of hiring a dreary university lecture hall in a Washington suburb, he invited students to come on a seven-day Caribbean cruise (for which they would pay) and spend most days on lectures, briefings and rubbing shoulders with the principal speakers...