I've always been baffled by critics of the CIA, who are horrified that it does illegal things. That is the purpose of an intelligence service: to perform illegal acts.

Richard M. Helms, the first director of Central Intelligence to rise from the ranks, was fond of saying that the CIA had been founded to make sure that there would never be another Pearl Harbor. Underlying this mission impossible was the wishful supposition that an America that knew everything could prevent anything.

I've consciously tried not to romanticize anything, especially not intelligence work. I've always said that I've been writing a series of episodic, naturalistic novels. The people just happen to be spies, politicians, civil servants.