The Reich Ministry of Public Enlightenment and Propaganda was established under Joseph Goebbels to control information and secure loyalty to Nazism through media like films, posters, and radio. The Nazis banned anti-Nazi publications, scrutinized media, and made radios affordable to spread propaganda while banning foreign stations. They also suppressed freedom of expression and the White Rose resistance group. The SS and Gestapo enforced Nazi policies, operated concentration camps, were responsible for the Holocaust, and created a climate of fear through surveillance and arrests of dissidents.