William Bernstein talks with EconTalk host Russ Roberts about his latest book, Masters of the Word. Bernstein traces the history of language, writing, and communication and its impact on freedom. The discussion begins with the evolution of language and the written word and continues up through radio and the internet. A particular focus of the conversation is how tyrants use information technology to oppress their people but at the same time, technology can be used to liberate people from oppression.