China has begun using facial-recogniton sunglasses connected to an internal database to catch criminals that otherwise might escape detection in crowds. This technology supposedly identifies individuals in a 10K person database in a tenth of a second. Of course we should expect this kind of technology to proliferate in China because they plan to install 400M CCTV cameras in the next three years to help them build a nice large database of Chinese citizens. How long before this starts here in the US? The glasses are connected to tablets that contain an offline database that can match passengers with suspected criminals. Unlike fixed cameras with facial-recognition capability, the wearable allows police to act more swiftly before their targets disappear into the crowd.