It's real and already in use... (Score -1)

In the Trafford Centre's security centre in Manchester (Shopping centre). I went for a tour around there and had presentations on how they go about organising a centre as big as that, the business involved etc. Was part of an advanced business course I was studying. Part of the tour involved a quick showing of the security centre where the pointed out the facial recognition system in place. It WORKS and has been in use for years (this was back in 2000).