It is clear, whether we like it or not, or want to say it or not, that there is a strong correlation between terrorist acts and being a Muslim, and being black and high rates of crime. That means if one is trying to deter terrorism and in some cases capture a criminal, he would expend greater investigatory resources on Muslims and blacks. A law-abiding Muslim who's given extra airport screening or a black who's stopped by the police is perfectly justified in being angry, but with whom should he be angry? I think a Muslim should be angry with those who've made terrorism and Muslim synonymous and blacks angry with those who've made blacks and crime synonymous. The latter is my response to the insulting sounds of car doors locking sometimes when I'm crossing a street in downtown Washington, D.C., or when taxi drivers pass me by.
It would be a serious misallocation of resources if airport security intensively screened everyone. After all, intensively screening someone who had a near zero probability of being a terrorist, such as an 80-year-old woman using a walker, would not only be a waste but it would take resources away from screening a person with a much higher probability of being a terrorist.
You say, "Williams, are you justifying religious and racial profiling?" No. I'm not justifying anything any more than I'd try to justify Einstein's special law of relativity. I'm trying to explain a phenomenon. By the way, I think some of the airport screening is grossly stupid, but I'm at peace with the Transportation Security Administration. They have their rules, and I have mine. One of mine is to minimize my association with idiocy. Thus, I no longer fly commercial.