The Post's Dana Milbank fleshes out his previous report on yesterday's Sarah Palin rally in Florida, adding this very disturbing note:

Palin's routine attacks on the media have begun to spill into ugliness. In Clearwater, arriving reporters were greeted with shouts and taunts by the crowd of about 3,000. Palin then went on to blame Katie Couric's questions for her "less-than-successful interview with kinda mainstream media." At that, Palin supporters turned on reporters in the press area, waving thunder sticks and shouting abuse. Others hurled obscenities at a camera crew. One Palin supporter shouted a racial epithet at an African American sound man for a network and told him, "Sit down, boy."

Now it would be completely unfair to suggest that, because some McCain-Palin voters are racist, McCain and Palin are themselves racist. Sure, they can stir up the kind of base hatred that has been this country's greatest shame, but you can't really hold them responsible for it, right? That kind of logic is called "guilt by association," and I'm sure McCain supporters will agree that it has no place in this campaign.