It is simply unarguable.
If a captain is not happy about a certain passenger(s), even if it's because his looks or possible religion he has the unquestionable right to refuse entry.
No room for liberalism over this subject!
I want to see more muslims condemning the WTC attacks in huge demonstrations all over the world. I want those bl*ody Palestinians that were jubilating on the streets of dustland on THAT day to come on telly and apologise.
Until there's a major change as above, I will refuse whomever I want! I trust no one!