harvard's commentsment, he reminded everyone as an oppressive force on college campuses. our deborah feyerick is at harvard university in massachusetts. liberals got an earful today from the mayor. >> reporter: they certainly did. michael bloomberg got a standing ovation. it's not okay to suppress any idea because you don't agree with it. accusing universities of becoming less open-minded about diverse ideas, michael bloomberg lashed out at liberal colleges and college faculties accusing them of a modern day form of mccarthyism. >> it's liberals trying to compress conservative ideas, even as conservative faculty members are in danger of becoming endangered species. >> reporter: he pointed to