I saw a limit to what I was ...

I saw a limit to what I was giving as kind of a scam I was running on the KGB, by giving them people that I knew were their double agents fed to us.
 Aldrich Ames

Quotes from the same author

The Soviet Union did not achieve victory over the West, so was my information inadequate to help them to victory, or did it play no particular role in their failure to achieve victory?
 Aldrich Ames