History and Public Policy Program Cold War International History Project The Vassiliev Notebooks are an important new source of information on Soviet intelligence operations in the United States from 1930 to 1950. Though the KGB's archive remains closed, former KGB officer turned journalist Alexander Vassiliev was given the unique opportunity to spend two years poring over materials from the KGB archive taking detailed notes--including extended verbatim quotes--on some of the KGB's most sensitive files.