Committee for State Security State Security played an active part in the so-called "Revival Process" to Bulgarianize the Bulgarian Turks in the 1980s, as well as writer and dissident Georgi Markov's 1978 murder on Waterloo Bridge in London known for the "Bulgarian umbrella" that was used. An issue the international community often raises is State Security's alleged control of the weapons, drugs, alcohol, cigarettes, gold, silver, and antiques traffic through Bulgaria before 1989. It is popularly thought that organised crime in the country in the 1990s was set up by former State Security agents. The agency is often incriminated with the ill-famed murder of
Bulgarian umbrella Vladimir Kostov the same year in the Paris "Métro". The poison used in both cases was ricin. Both assassination attempts are believed to have been organized by the Bulgarian Secret Service of the time of the Cold War with the assistance of the KGB. Such an umbrella was intended to be used in the assassination of Pallo Jordan and Ronnie Kasrils by the South African Civil Cooperation Bureau death squad. These two cases inspired the 1980 French film "Le Coup du parapluie" ("The Umbrella Coup") directed by Gérard Oury and starring Pierre Richard, and Bulgarian writer Stefan Kisyov's novel "The