Unfortunately the cat is out of the bag on this, it is basically unpreventable. Facial recognition can be applied to any video stream or recording from existing surveillance cameras, such as one that's pointed at the entrance to the supermarket where you shop. These rayban glasses are merely a mobile platform for acquiring the video. Packing the recognition tech into such a small package is a demonstration that it can be deployed almost anywhere.
“Face recognition technology on the streets of America poses a uniquely dire threat to the practical anonymity we all rely on,” said Nathan Freed Wessler of the American Civil Liberties Union. “This technology is ripe for abuse.”
And boy, it sure is. A garden variety miscreant will be able to tag and acquire the name, address, phone number, and marital status of all the pretty girls he comes across in the grocery store for future stalking purposes. Potentially vulnerable elderly people can be similarly identified. Wire this into the Flock license plate reader network and the government will have full coverage of your movements, indoors and out.