On January 15th, New Yorkers awoke to single-digit temperatures and a few inches of new snowfall. Al Gore chose the day to give a speech on global warming. The speech--delivered at the Beacon Theatre on Manhattan's Upper West Side--was sponsored by MoveOn.org, a website-turned-political-action-committee that recently gained notoriety by hosting two political ads equating President Bush with Adolf Hitler. Although such comparisons were common at anti-war rallies, I still wasn't sure whether this mindset was now infecting the Democratic base--the sort of folks who'd brave the cold to hear Al Gore speak. To find out, I spent a few shivering...