The only words to describe Rudy Giuliani’s latest ad:

Way to put to rest any fears that your campaign has little going for it other than blatant fear mongering.

UPDATE (1/3/08): In fairness to the Giuliani folks (or, at least, in equal unfairness to the McCain folks), this McCain ad uses similar footage of Islamic terrorists to go after Mitt Romney for his lack of foreign policy experience:

To be clear: It is, of course, more than defensible to run a campaign based on your strategy or experience as regards America’s response to terrorism. It is quite another thing to simply try to stoke fear in the electorate while making no argument whatsoever. By that measure, the McCain ad is at least trying to draw contrast with another candidate; the Giuliani ad is pure fear mongering. I don’t think either ad is particularly admirable — but since when is any campaign ad?