After the guns fell silent in May 1945, Stalin installed secret police services in the satellite countries of Central and Eastern Europe. Trained by his NKVD--a predecessor of the KGB--officers of the Polish UB, the Czech StB, the Hungarian AVO, Romania's Securitate, Bulgaria's KDS, Albania's Sigurimi, and the Stasi of the German Democratic Republic ruthlessly repressed their fellow citizens. These state terror organizations were also designed for...