As a college professor and university administrator with over two decades of direct experience of campus politics, I am not overly worried that even the shrillest heckler’s vetoes will end free speech in America. As a scholar of literature, history and politics, I am especially attuned to the next generation’s demands to revise existing definitions of free speech to accommodate previously delegitimized experiences. Freedom of expression is not an unchanging absolute. When its proponents forget that it requires the vigilant and continuing examination of its parameters, and instead invoke a pure model of free speech that has never existed, the dangers to our democracy are clear and present.