"Or perhaps new screeners could be brought in who actually realize that the PASSENGERS are their CUSTOMERS as well as human beings and deserve respect and civility?"

Yes, a lot of us have issue with TSA and yes a lot of screeners at my airport and it seems other airports are looking for new jobs.

But in that time I personally don't let my personal life interfer with my work life. I treat passengers with respect, when they want it. When a passenger wants to be left alone, I do it, while still doing my job.

I grew up using "Sir, Thank You" so I still use it. But if I'm talking to someone else my age, I talk differently with them, and it seems to make people more comfortable.

Screeners in general understand, at least I think so, that your the customer. Some do have issues, sure, what business doesn't? But anyway, the company makes it hard for us to treat you that way.