["What motivates the administrators of these universities, as well as grant providers, to work so adamantly against anyone seeking to teach ID or Creationism? Why do they persecute these people (like the ones who were featured on "Expelled") with such venom? What motivates them to act so viciously?"]

OK, you asked. Because evolution is their dearly-held religion that allows them to believe they are not accountable to a higher authority. They hate the idea of the God of the Bible, and they are greatly angered by anyone who would defend the Bible and attack their religion. All one needs to know as proof that their worldview drives their belief is that 99.9% of them will be socially liberal and pro-abortion (I’ve still never ever met an activist evolutionist who isn’t socially liberal, after 12 years of debating origins). They can’t win with evidence, so they suppress (censor) any balanced discussion of the evidence. It makes them mad that others want to expose their religion as a big sham built on a science-depraved myth less tenable than Alice in Wonderland. There’s your answer.