Unless you're not white then you'd be "profiling" your own race because people from the Middle East are Caucasian or "white", so the idea this is racist is absurd. I think it's just being aware that there are foreigners in our country who intend to kill as many of us as they can and you aren't comfortable when you see foreigners you don't know and couldn't possibly predict their intentions.
Today on the news they were interviewing people getting off of planes that were of middle eastern descent and asking them if they had been harrassed or made to feel uncomfortable. None of them had experienced anything very unpleasant and one of them said, he had found himself looking very suspiciously at other middle easterners. It isn't "profiling", it is common sense.