Oh, now this is interesting. Apparently, that Democratic attack ad against Howard Dean was funded by a group of unions endorsing Gephardt. Two of the unions involved are so disgusted by the ads that they're asking the group to pull them:

The union, Mr. Sloan said, believed the group's commercials would focus on economic and health care policies.

But in the end, he said, the advertisements were not what the union had bargained for, especially the latest one, in which an announcer questions Dr. Dean's national security qualifications as a camera zooms in on a magazine cover showing Osama bin Laden's face.

"Osama bin Laden has nothing at all to do with this campaign; it's a travesty," Mr. Sloan said. "We think the ads are despicable and if it was up to me, we'd ask for a refund."

The New York Times has a nice editorial on this issue, as well.