Let's say a Soviet exchange student back in the '70s would go back and tell the KGB about people and places and things that he'd seen and done and been involved with. This is not really espionage; there's no betrayal of trust.

By the late '70s I had come to question the point of a great deal of what we were doing, in terms of the CIA's overall charter.

The FBI, to its credit in a self-serving sort of way, rejects the routine use of the polygraph on its own people.

When Reagan was elected, I felt that the Agency had gone much more into the service of a political tendency in the country with which I had already felt very strong disagreement.

The betrayal of trust carries a heavy taboo.

Perhaps my information hurt the Soviet Union more than it helped. I have no idea. It was not something I ever discussed with the KGB officers that I was dealing with.

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