Umm. I don't think this is modeled after El Al....

Not unless the TSA staff has suddenly become a lot better educated and lot better trained. And the US has suddenly become both much more homogeneous and more tolerant of racial, religious, and socio-economic profiling. And there's a lot less air travel...

This may work for the relatively small number of passengers and in the Israeli cultural environment (or it may just be security theater there, too ) In the US, this is basically a license for sexual and racial harassment at the low end and an invitation to stalking, burglary, and industrial espionage at the high end.

Note also that they don't do anything like this in countries that are far more similar to the US in terms of size, religious and cultural diversity, attitudes toward privacy and discrimination. As folks have commented in other threads, it is not common to be asked questions even when entering EU countries on a non-EU passport, much less when getting on a plane.