KGB:byvshikh ne byvaet? - Pirogov V.

This book is about counterintelligence, not spies. The book is about the multifaceted activities of the Soviet Chekists to expose foreign spies and traitors in their own ranks. Real, not former intelligence and counterintelligence.

This is a true, as possible, story about their lives, dreams, worries and anxieties.

As is customary, you can assume that all the facts are fictional, the names are changed, and the possible coincidences are accidental. the author's view of events, in contrast to numerous publications written by people unrelated to the events described.