No one's interested really in knowing what policies or diplomatic initiatives or arms negotiations might have been compromised by me.

You might as well ask why a middle-aged man with no criminal record might put a paper bag over his head and rob a bank. I acted out of personal desperation.

Deciding whether to trust or credit a person is always an uncertain task.

The use of the polygraph has done little more than create confusion, ambiguity and mistakes.

An espionage organization is a collector: it collects raw information. That gets processed by a machinery that is supposed to resolve its reliability, and to present a finished product.

Historians don't really like to carry on speculative debates, but you could certainly argue that the likelihood of a Soviet invasion of Western Europe was extremely, extremely low.

The national security state has many unfair and cruel weapons in its arsenal, but that of junk science is one which can be fought and perhaps defeated.