This is, of course, discusting behaviour, in anyone's civilized world!
I've experienced similar antics passing thru JFK some time ago.
They can be made to 'tow the line' and 'show normal public service manners', should the controlling managers deem it to be so.
So my anger is mainly directed at the controlling managers, and executives, of the TSA, not the monkeys at the checkpoints, who don't seem to know any better, these managers seem to think this sort of behaviour is acceptable!!!
Not even under Mugarbe is this acceptable!
But it goes on....and on....