The Value and Limits of Academic Speech: Philosophical, Political, and Legal Perspectives - Paperbackby Donald Alexander Downs (Editor), Chris W. Surprenant (Editor) Free speech has been a historically volatile issue in higher education. In recent years, however, there has been a surge of progressive censorship on campus. This wave of censorship has been characterized by the explosive growth of such policies as "trigger warnings" for course materials; "safe spaces" where students are protected from speech they consider harmful or distressing; "micro