Many of my neighbors (the types who plan to vote for Kerry, and talk about it ad nauseum) are leaving anyway because they fear a major terrorist attack either on the Fleet Center or on Kerry's home.
AlQuada isn't known for killing their own candidates.
I can't believe it either. One law school student who lives on my block (who supports Kerry and was genuinely excited about having Dukakis as one of his professors this past year) is taking off for the week because he thinks Boston will be "lit up" and plans to be well outside of a possible nuclear fallout zone (Yes, he actually said this.I am dead serious)...it boggles the reasonable mind.