I'm sorry it triggered you. Would it help to know that (according to the TSO) the person who is "with" you at the scanner is not the one viewing you on the scanner? That TSO is supposed to be in a remote area and doesn't actually see who you are, only the scanned image. I think that's about as private as it could be, for having to be.
It would seem terribly embarrassing for everyone if it was like they scan our luggage, standing there viewing and deciding things in front of us! But it isn't supposed to be that way, especially at Reagan, since that was where they demonstrated it first, I think.
I'm more concerned about how they have invaded our privacy over time ... since the 90s I think ... knowing where I go, what I buy, what I view on the internet, sending me ads of competing brands based upon what info they gathered on me, ability to view my home and yard through the satellites, being able to turn the fuel off on my car to make me stop, stuff like that is too much for me to think about!

Glad you were able to do it.