So Peter Beinart is taking a leave from TNR to expand his article "A Fighting Faith" into a book. You guys remember the piece, it called for a return to hawkish liberalism and a party purge of "softs" like Michael Moore. It pitted Democrat against Democrat and liberal against DLC'er. It did, one might say, what an article is supposed to do -- inspire debate, arouse passions, and challenge assumptions. I didn't agree with everything he wrote, but it was a good, timely piece that provoked an important, if overly vitriolic, discussion. But he should have left it at that.