Rod Dreher, author of Crunchy Con over at Beliefnet, wrote an article last week blasting both Glenn Beck (everyone's getting on the bandwagon) and Skousen's 5,000 Year Leap.
That night he actually read the book, and changed his tune.
He still believes the book is weak in the history and argument departments, but he no longer believes it to be "dangerous." More like "hokey."
Full disclosure: I haven't read the book.