This scares the hell out of me. Not only are they going to use our photos for a purpose we never consented to, but I would expect the misidentification rate for Black people to be far higher than whatever is claimed. As someone who has been stopped by the police before due to a ridiculous case of mistaken identity, I can only imagine trying to talk them out of an arrest when they say "computer says this is you".
I agree, you only need to look at the UK post office scandle to understand computer systems make errrors or rather have faults in the system that produce errors, which lead to serious consequences.a\