I think the difference is not in how many people you can recognize, but what you do with the information. * All existing laws should protect children, and prot

I think the difference is not in how many people you can recognize, but what you do with the information. * All existing laws should protect children, and protect people from discrimination. It should prevent the disclosure of health records. (So no AR apps that let you see who has what disease) * The main concern is tracking people's location and movements and taking photographs and tagging people on social media sites. * Some potential benefits are reducing crime and a "call parents" app that lets you call the parents of a misbehaving child without actually identifying the child to the person who has the app.