My point is not that we only focus on young men with Muslim names, or those originating from Muslim countries, but that we acknowledge there is a higher likelihood for potential terrorists to have these characteristics, and that they may pose a higher risk than, say, a 50 year old female from Nebraska, so it should at least be a consideration in determining who receives additional screening and who does not.
Profiling is not a magic bullet, but incorporating some aspects of profiling into the overall screening process seems like common sense to me.