The author of Bias does the neocon turn by explaining why it became impossible for him to remain a modern liberal:
Over the years, we grew tolerant of all the right things. We grew tolerant of civil rights, we became more tolerant of women’s rights. We became tolerant of various kinds of rights, and it was a good thing that we did. But over the years, we became indiscriminately tolerant. We became tolerant of crap! To tell somebody, to make a comment about this crap is to be judgmental somehow. And somehow, being judgmental of crap has become a bad thing.
Preach it, Bernie. Certainly fits with S.T. Karnick's desire to remain in the classical liberal fold.