I flew yesterday and in the plane realized I had some water from my daughter in the backpack. It was scanned and missed of course. And why wouldn't they miss it, it's a waste of time anyway. But at least they harassed a 3-year old to stand in a certain way to get scanned and fail at it. Unrelated, but I've come to believe it's a form of social welfare. So much policing for nothing, not just airports, wars on drugs et…
The term you're looking for is security theatre
The fact that this works with so many people makes me warier of them than anyone it purports to protect me against. I don't feel safe being harassed by scowling officials in faux-important uniform.