Hi all. OP here with some clarifications.
1) Racially profiling was probably not the right term. We think it is more that they may have as a policy been instructed identifying persons that are risk factors and checking that. It is our opinion that in profiling, those individuals selected for that reason tend to be more "aggressive looking", tougher, whatever - that is fine, but we think that race, descent, middle eastern looking does play a part.
2) Clarify that this is an opinion - and will have to respectfully agree to disagree. Also stated that as general procedure, they will go ahead and pick true random people including those that appear least likely or capable of causing issues. This does not preclude them from identifying "riskier" people for screening
3) I understand that most responders disagree and think that there is no profile or security screening going on, but consider this: You are non-Caucasian and in a group of "standard" family. The screener looks at the entire group and cuts in and pulls you out for screening - if this happened to you repeatedly, you might feel otherwise.
4) Those checkpoints for no-bag entrance are not heavily staffed since they are choke points. There appear to be just one or two "selectors" - they don't screen every person. The times that I was not selected was because the selector was in the process of identifying and selecting someone else. So in those cases, I was trumped or foddered from others ahead that they may have already selected for any reason.
5) I have no problem with being screened or selected because I understand that security is paramount. Still of OPINION that they should just screen everyone or make it truly random (next time, pick my wife or one of our kids).....