Citizens of the Reich were fed a steady diet of propaganda at the workplace, in public rallies, and over the rapidly evolving medium of radio. The Führer was the first dictator with the ability to reach eighty million people in a single instant with a unifying summons. Radio was the Internet of the 1930s, but, being a one-way means of communication, it was easier to control. Never had such an efficient tool for manipulating the human mind been available.