. >> next on booktv, greg lukianoff argues that america's university and college campuses stifle free speech and discourage students from holding unpopular views. the author contends this environment has increased the country's political and decreased this course. it's about 45 minutes. [applause] thanks so much for having me. i was at that first conference and we had randy barnett speaking over there and was exciting to be here for the inauguration from the organization. i'm going to start on a little bit of a personal note. i'm having a big month and i want to let you know since some of your friends of mine and some of you will be. i just got married on the 12th. [applause] i have a book come out on tuesday called campus censorship and the end of the american debate and i am leaving right after this for my 20 it high school reunion took about how free speech is curtailed on the modern american campus and how i believe it harms us all whether we are on campus or not. why did i write this? i wrote "unlearning liberty" because i went to stanford specifically to study the first amendmen