Interestingly, there is a company called
Facewatch, which provides businesses with facial recognition cameras and access to a watchlist of faces, and the ability to add your own. Then there's the Chinese surveillance state. It has 200 million cameras and some news sites reckon that most
Chinese citizens are in some kind of database.
Even if you choose not to believe that, I will give you my own encounter with the facial recognition state. Earlier this year I went on holiday to Austria. I flew from Newcastle to Salzburg, flew back from Salzburg to Newcastle a week later. On arrival at Newcastle Airport, I went through passport control. In previous years this had been a desk manned by an actual human being. This time it was three or four machines (I can't quite remember how many). Basically, you stepped into the machine and planted your feet on the yellow symbols provided, you placed your open passport face-down on a scanner, and you looked at the camera.
The theory is that the camera scans your face, the scanner scans your passport and then the computer compares the images in the two sources. If the passport's image matches the camera's scan of your face, then the gate opens and you're through. If it doesn't then you have to step out of the machine and go to a desk manned by an actual person.
So, what happened? Well, despite loads of people going through ahead of me, and despite having a perfectly genuine and legal passport, I was rejected by the machine. I was re-directed through to an actual person and had to answer a couple of basic background questions whilst the Border Force agent stared suspiciously at me and my passport. Ultimately I made it through passport control. However, facial recognition technology that works in real-time is already here, even if its accuracy leaves something to be desired.