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

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

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 U.S. is, so far as I know, the only nation which places such extensive reliance on the polygraph. It has gotten us into a lot of trouble.

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

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.

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.