Kevin Roose, a student at Brown University, spent a semester at Liberty University just to see what it was like and then wrote a book about it. It sounds like his book is fair and does justice to the people there. Check out the following articles, the first one written by the author himself:
Novel Approach: Undercover at Liberty
Here is a link to the book at Amazon. I haven’t read it so I can neither recommend it nor warn against it.