> And unlike with object recognition that uses cameras, there are no privacy concerns, or need to maintain line-of-sight or good lighting conditions. Radar works through different materials and in the dark as well as the light.
Wait, what? The ability to see through walls and not require line of sight leads to fewer privacy concerns?
Seems to me the privacy concerns are significantly greater for radar than facial recognition. Radar can see places that cameras can't, and while it doesn't capture color information, it does capture detailed 3D data that camera-based systems need to interpolate.
Plus, you know, the whole working through walls thing. Seems like there are at least as many opportunities for abuse as with facial recognition technology.