Short version: so far, the "Academic Freedom" hearings in Harrisburg are an embarrassment to the people pushing them.
The "Fahrenheit 9/11 was shown in bio class" allegation has interesting story behind it; it was a single (anonymous?) allegation to a Horowitz group. The College of Science investigated it, quite seriously, it seems to never have happened, at least not in a College of Science biology class. (There are other classes in other colleges of PSU which have the word "biology" in the title, you'd have to be really stupid to not understand the distinction between a "biology class" and a "class which has the word biology somewhere in the title or description", but there could be people that stupid, at university).