I'm at the point where I'm going to say that we need to prohibit facial recognition devices for companies and peiplemin general, and mostly for government too.
This shit is going too far. I know I don't have a right to privacy when I'm outsidey home but I will very fucking well have a tight to not have my privacy abused to hell and back when I'm outside. No, Facebook, you don't get to facially recognize me on the street and then follow my location everywhere, monitor what I'm doing while Im not even on your fucking website.
The only place where I remotely think it might be allowed in a very limited fashion is by governments and them only after OK from a judge and even them only in a very limited set of circumstances, like a missing child or a known > violent criminal who's on the run. Couple this with harsh penalties for police officers who would break those rules. This, of course, only works in well established democracies where police is very well controlled, else it's just abuse again as well.
Beyond that tiny scope, fuck your facial recognition, and fuuuuuuccckkk Facebook and fuck mark Zuckerberg with an umbrella.