Собачье сердце
Lifting of the total censorship and political pro-Communist propaganda led to disclosure to public of such political and historical issues as the Molotov-Ribbentrop Pact, the Katyn massacre, revision of the Stalinist repressions (The Gulag Archipelago), revision of the Russian Civil War, the White movement, the New Economic Policy (Heart of a Dog), criticism of the 1986 Chernobyl disaster censorship, pacification and procrastination by the Soviet authorities.