Only half?
Not sure how the Yanks stand with photographic ID systems, but over on this side of the pond pretty much anyone with a passport and/or driving license has their mugshot on record.
Then there's SSSC registration and PVG checks for anyone who works in healthcare and social services, which again requires a photo ID.
Naturally anyone who's ever been arrested is also on file. In fact, just attending any sort of protest rally is guaranteed to get your entire life's history recorded in a police database.
Anyone not covered up to this point is probably still on some other system, even if it's only an OAP bus pass.
The vast number of CCTV systems in Blighty basically guarantees that "the system" has your mug on record, one way or another, unless you've lived your whole life in a cave, and the legal protection, that is supposed to prevent unfettered government access to that data, is little more than a farce designed to pacify the masses and stop them whining too much, as has been demonstrated countless times (stolen laptops containing vast government databases, council workers using "anti-terrorism" legislation to spy on parents who they claim enrol their children at the "wrong" school, ad nauseam).
In short, we're not only worrying about something we have no democratic means of preventing (since neither the US nor the UK are even remotely democratic), but something that has already happened, indeed it happened a long time ago.
The question is, what are we going to do about it, if anything?