> The article does not claim that the glasses prevent face detection. Their first image seems to be showing the difference between detecting and not detecting

> The article does not claim that the glasses prevent face detection. Their first image seems to be showing the difference between detecting and not detecting a face ("Facebook detects a face" and "No face detected"). Comments like this, too: "They claim to break face detection when the lights are on." So I assumed they were claiming it breaks face detection.