Face Surveillance - we've seen how previous technology has been used once in the hands of the co-opted.

https://fair.org/home/face-surveillance-is-a-uniquely-dangerous-technology/?awt_l=Ke_9G&awt_m=hww7T8ccx2R._TQ

Even a perfectly functioning, unbiased facial recognition system is extremely dangerous. That’s because this technology gives the government unprecedented power to track people, surveil who they are, where they go and who they know, across geographies, across time.

You don’t have to drive your car, if you want to avoid license plate readers. You don’t have to bring your cellphone, if you don’t want it to be tracked. But you can’t leave your face at home. And your face print is exactly the target for these products, like Amazon‘s Rekognition, Microsoft Face, that make widespread use of facial recognition technology easy and cheap. And so that’s really the game changer we’re talking about.

In addition to that, the government doesn’t have to decide ahead of time who it’s going to follow around, because face surveillance is silent, it’s undetectable, and it can be applied after the fact to any video or still image. And we know, of course, that there’s more and more video and still imaging, such that anything you do in a public space may well get recorded, then be subject to facial recognition if the government has that tool in its toolbox.