The definitive history of the powerful and brutal East German Secret Police In this gripping narrative, John Koehler details the covert activities of East Germany's Ministry for State Security, or "Stasi." The Stasi, which infiltrated every walk of East German life, suppressed political opposition, and caused the imprisonment of hundreds of thousands of citizens, proved to be one of the most powerful secret police and espionage services in the world. Koehler methodically reviews the Stasi's activities within East Germany and overseas, including its programs for internal repression, international espionage, terrorism and terrorist training, art theft, and special operations in Latin America and Africa.