Suppression of speech on campus.

During my early years I heard a lot about the Communist threat. It was said that they would use our freedoms and open society against us. Then all the old anti-communist fears faded and it became quaint if not a cue for being laughed out to worry about communist infiltrators. When I read stories today about liberal administrations in higher education suppressing free speech, whether because of political correctness of just fear of offending some group or other I remember the old fears. These people aren't communists, but they were demonstrating for freedom of speech in the 60s and 70s. Now that they've got control, where did the freedom go?