It appears that the kosher way of doing this by US standards is to partner with a for-profit company(ehm Palantir, Meta, Google etc.) to do it for you or you become a surveillance state. Not saying to bash on US, it's just a curiosity of mine. In a similar way USA&UK diverge from most EU by not issuing national ID cards and not having central resident registries but then having powerful surveillance organizations tha…
Honestly a pretty good point, the US already has "facial recognition vans" on the road in the form of Waymos that will provide video to police upon request. In most states, I think police could also just buy a Tesla, have an officer drive it around and set up a system to continuously upload video to a facial recognition service.
These seem meaningfully different than UK's facial recognition vans. The government has to request the footage from Waymo for a specific place/time. I don't think they can put in requests like "analyze all Waymo video data for this particular face and tell me where they were and when". It's much narrower in scope.