"Arab" Not "Arab Terrorist"

A correction to the quote I posted from Ana Marie Cox last night. One of McCain's supporters called Obama an "Arab", not a "terrorist."  The quote was reported by Halperin as well. McCain did not actually correct the woman on the matter at hand more than saying "no" and then saying that Obama was a decent family man. Are Arabs not decent family men? I guess when you're relying on ignorance and fear of this variety, your standards of minimal tolerance have to be relaxed a little.