Having read this response I see your point better. I agree to a point.
Frapster
Where I live we have cops that flood busy intersections. This is called a “saturation patrol.” It involves 15-20 cops going to a busy intersection, stand on the islands of the intersections with flashlights and shine them inside your car while you are stopped. They are looking for expired plates, cracked taillights, seat belt use, improper left turns, improper right turns, anything they can get you on. They will literally line up cars they pull over and site ten to twenty at a time.
So the corollary to TSA is that checkpoints and highly visible LEO presence is just becoming a part of life. The corollary is that TSA’s argument is that when you buy an airline ticket you have agreed to being searched, and the fourth amendment no longer applies. I live in a State with Implied consent. That means that when you accept a drivers license you have also accepted that you and your vehicle can be searched.
So who built this? Law and Order conservatives keep voting to fund police departments, sheriff departments, judges, District Attorneys. So if they fund it. I’m no rocket scientist, but I can only assume conservatives support this stuff.