"Incidentally, there is new CCTV being rolled out in the UK that employs facial recognition software to analyze behavior and zoom in on/follow 'suspicious' characters in public places. Smart surveillance. CCTV doesn't really both me personally, however access to my personal information via my credit card or other ID chips is quite invasive... and moreover can you imagine if it progressed to a point where it could 'read' your recent purchases and then customize the ads accordingly? Everyone would be walking down the street glancing around them like 'Who's that hemorrhoid cream ad aimed at?'"