Facial recognition 'proven' as airport crowd filter / The Register, 17 April 2007
http://www.theregister.co.uk/2007/04/17/facial_proof/
Mark Ballard
"Facial recognition cameras have been proven as a means of spotting wanted people in crowds, claimed LogicaCMG.
However, the proof was limited and the owners of public venues have proven reluctant to pay for the technology because they believe their business is entertainment rather than security."