SF airport

My cousin Chris and I were in the metal detector line at the airport and there was a Middle Easterner family ahead of us. Well there was a couple of families ahead of us but the line was held up. First the metal detectors went off by the son and then they check his head piece. Then the father set off the alarm. They checked his turban. At this point I was peeved because I hate waiting in line and I'm impatient. So while security was checking the father's turban I noticed that he had his watch on. WTF! They were so worried about him hiding something in his turban and failed to notice that he had his watch on!
While I'm standing there impatiently they could have solved this by noticing the most noticeable thing! I would think that kind of stuff is the first thing they would address- belt or watch? Isn't that kind of raciest?