Stabbed in the Back! (Harpers.org)
The above link is to an excellent Kevin Baker article in the current Harper's. I agree with Josh Marshall, who also links to this article, that Baker may be going a bit far to fit all of the past 40-50 years of conservative growth with this one theory. However, Baker makes some excellent points, and the basic idea does describe a great deal more of conservatism than even I had previously thought. Read the article.