Ask Stacey Amato and Yukari Mihamae (among many others) how well that worked out for them.

I spoke to a PHX supervisor once. She was the one who advised me that all pax and their belongings are subject to search at any time on airport property and there is zero requirement for TSA to inform the pax that their belongings are being searched or to do it in their sight. (I had asked for her because I turned around from my grope to see a TSO returning my BP and ID to the outside pouch of my locked carry-on. He had taken my docs and photocopied them without saying anything to me.

The supervisor must have been correct, because apparently now PHX (who doesn't have enough folks to staff Pre lanes) has staff accosting pax entering the airport (landside!) and searching their bags.