Gotta disagree on this one - in the US last week a flight was diverted as two "middle eastern looking men" were disturbing pax sense of safety by engaging in scary religious rituals - turned out they were two Jewish pax praying. If we throw pax off a flight based on appearances or nationality we cross the line into racial discrimination - most "middle eastern looking" people or even documented Muslims are not crazed terrorists and should not be treated as such without reasonable cause. The other option is what the Chinese have done in banning all middle eastern pax from entering the country - is that what we want?