Throughout World War II, the arrests and forced deportations of Polish families to labor camps by Soviet Russia received practically no mainstream media coverage in the United States. After the Soviet Union became an important military ally against Nazi Germany with the sudden collapse of Stalin’s alliance with Hitler and his attack on Russia in June 1941, the propaganda agency of the Roosevelt administration–the Office of War Information (OWI)–deliberately covered up Stalin’s crimes, both the deportations of millions of people to Siberia and the mass executions of Polish prisoners of war.