The Free Speech Century: A Retrospective and a Guide. Professor Lee Bollinger, President Columbia University. Respondents: • Professor Rae Langton (Professor of Philosophy, Cambridge) • Professor John Powell (Professor of Law and Professor of African American Studies and Ethnic Studies at the University of California, Berkeley) • Fred Schauer (David and Mary Harrison Distinguished Professor of Law at the University of Virginia) Dinner is open to invitees and attendees of the lecture.