its a good warning, but there’s no new info here.

• the scanners are usually not technically x-ray, some are mm wave, some are xray backscatter.
• the technology can see through clothes and produce a grainy bw image of a naked person
• the tech is very closed, and the customers are NDA’d into not letting the public know anything
• the enhanced privacy changes don’t change the device - its still taking naked pictures of people, its just doesn’t show them to the operator.
• before you look, as of a couple years ago there are just about 6 images from these devices out there on the internet. (iirc, there is a researcher who bought one off of ebay to study, but lost track of their work. )
• its in use in border patrol type operations to see into the trailers, trucks and cars.
• no one can prove they aren’t keeping a database of naked people. ;-)