And let's not forget to program the system to pay especially close attention to those "face-ID"ed as one of those disfavoured by whatever administration is currently in power.
I predict businesses will go next. They will get the computers to analyze when employees are slacking off, when it appears the phone call they are on is personal, their expressions while looking at their monitors, etc...
Once the genie is out of the bottle, it is over. Now that it is possible to predict behaviour, big business, big government, big brother will be all over it like white on rice.
When it happens over here (and it will, the majority of Americans are sheep), say a liberal administration is in power...do you see cameras going up around gun/ammo/hunting stores, VFW halls, American Legion halls, etc.? Probably.
The current administration wants to film people visiting our memorials in DC. I can only imagine what a liberal will do.