So what is the problem they are trying to solve?
I have a paid ticket, for one paid seat.
Take me to my destination.
Oh, I may be a terrorist, I guess, on the watch list.
Yeah, that watch list, the one that puts you at the front of the line at the border.
Taxi drivers don’t do facial on me (yet, I think).
I don’t think they have facial cameras at the state borders on the freeways (yet).
Why do they need to ID travellers, anyway? So they know exactly who went exactly where exactly when? Why?
/r (/rant)
They have them at traffic light controlled intersections.
Those pole cameras are NOT looking at license plates, but right thru the windscreen!
Your phone is constantly talking to the towers, so they pretty much know where you are anyway.