1. Even if they had badges that said TSA holdings, all of their attire is littered (an understatement) with the Gojet badge of dishonor. Their hats, jackets, and their sh*t eating grins.
2. As far as I know, there aren't any that have any sense of shame or know what ethics from TSA going over there. All I know of are the ones that went initially.
3. Not that I have heard of. I love it how they always try and say hello to us and get us to acknowledge them. One ever went as far as to touch me on the shoulder in the jetbridge as two buddies would that haven't seen each other in a while. I ignore them. However, in the bathroom in ORD the other day, one of these degenerates is at the urinal and his pants come all the way down whilst in the middle of a piss. I had to laugh at his red undies.

It made my day. Given the opportunity/good reason, I wouldn't hesitate to kick one of their asses.