Today marks the 90th anniversary of the formation of what would become the KGB.
Cheka, headed by Felix Dzerzhinsky, at first had only 23 employees [...]
In 1921 it numbered over 30,000 officers, agents and even border guards [...]
At the height of the Cold War, the organisation, which changed its name again to the KGB, the organisation serving as the Soviet Union's premier security agency, secret police and intelligence agency, maintained thousands of agents in foreign countries. At home its web of millions of informers permeated every sphere of public life [...]