Back and forth

Some play-by-play:

First, Andrew Sullivan wrote this. Kevin Drum responded with this. Undeterred, Sullivan wrote this. Kevin, seeing yet another opening, fired back with this.

Read the whole exchange. It's a fine example, I think, of how liberal positions--based upon empiricism and analytical clarity--so often dwarf their conservative counterparts, which, standing upon heaps of free-market dogma, get no equal measure of rigor.