Big Brutha
I respect what you are saying and perhaps most of us WASPs have got some bigot in us, but correct me if I'm wrong.
To a man, every Al Quaida terrorist photograph so far published has shown people of a non-white (mainly Arabic) hue. This would tend to narrow down the field for me and most people. We can only go on the information provided by the media and law enforcement agencies in this matter.
I believe that the Muslim community has not quite got its own house in order on this one. We have seen local Muslim boys go to fight for the Taliban in Afganistan with very little condemnation from their elders back home. I think that despite what the Politicians and media might say, white western people are largely disliked by the worldwide muslim populace. If it's not true, I would like a Senior Muslim Politician/Cleric to tell me so without using the excuse of the situation in Israel.