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.

The resistance of policy-makers to intelligence is not just founded on an ideological presupposition. They distrust intelligence sources and intelligence officials because they don't understand what the real problems are.

I said in court a long time ago that I didn't see that the Soviet Union was significantly helped by the information I gave them, nor that the United States was significantly harmed.

I knew quite well, when I gave the names of our agents in the Soviet Union, that I was exposing them to the full machinery of counterespionage and the law, and then prosecution and capital punishment.

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

The difficulties of conducting espionage against the Soviet Union in the Soviet Union were such that historically the Agency had backed away from the task.

I'm a traitor, but I don't consider myself a traitor.