The Sword and the Shield is based on one of the most extraordinary intelligence coups of recent times: a secret archive of top-level KGB documents smuggled out of the Soviet Union which the FBI has described, after close examination, as the most complete and extensive intelligence ever received from any source. Its presence in the West represents a catastrophic hemorrhage of the KGBs secrets and reveals for the first time the full extent of its worldwide network.Vasili Mitrokhin, a secret dissident who worked in the KGB archive, smuggled out copies of its most highly classified files every day for twelve years.