Columbia subject headings:
Harvard subject headings:
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti. Alʹfa.
Princeton subject headings:
Police--Soviet Union--Special weapons and tactics units.
Secret service--Russia (Federation).
Soviet Union. Komitet gosudarstvennoĭ bezopasnosti. Alʹfa
Terrorism--Russia (Federation)
Terrorism--Soviet Union.