I have to agree with FBW, well said.
By the way, since not all terrorists are as dumb as people think. Is it possible that theses fiendish creatures might decide to disguise themselves?
Shave off the beard? Go blond? Wear a smart suit and tie? A clerical collar? Change their name to Fred Bloggs?
On a similar note,
I have an acquaintance who is a world renowned specialist in diseases of the blood who has an Arab name and is of arab appearance. He no longer attends conferences in the U.S. because of the hassle he receives when travelling. The community is poorer because of it.
God help us all if passengers are encouraged to "profile" their nieghbours.