Profiling: Not Much Help
Profiling would only help if all terrorists in the world happened to be in the racial group you happened to pick. They're not. Sorry wino, there are white terrorists as well, I grew up with IRA bombs and scares on the menu.
For the historically minded: One of the Palestinian star hijackers of the 1970s was a blonde, blue-eyed German woman...oops. (Gabrielle Kruger of the PFLP) Even if you are convinced that Islam and terrorism are the same thing, I would remind you that you that it's a religion not a race - you can convert. Think John Lindh.