

Commercial versions of these systems exist in the UK.
https://www.theguardian.com/uk-news/2025/jun/06/shopper-facewatch-watchlist-39p-paracetamol-london
The Gdpr makes these things harder to do, but not automatically illegal.
Surely you have noticed that there is a lot of criticism of the GDPR and EU tech regulation.
Yeah, and some of it is even true.
Go on, drop a rocket on Zuck’s Bond villain hideout.
Let’s see what happens.