The Free Speech Clause of the First Amendment prohibits the government from "abridging the freedom of speech," but does not define what that freedom entails. Chapter 1 provides a broad overview of the main categories of protected and unprotected speech in First Amendment jurisprudence. Chapter 2 examines the scope of protection extended to freedom of speech in thirteen selected countries. In particular, the chapter focuses on the limits of protection that may apply to the right to interrupt or affect in any other way public speech. It also addresses the availability of mechanisms to control...