Via guardian.co.uk -
Counter-terrorism experts have drawn up plans to develop an array of advanced technologies capable of spotting would-be terrorists in a crowd before they have time to strike.
Scientists and engineers have been asked to devise ways of analysing people's behaviour and physiology from afar, in the hope they may reveal clues about their mental state and even their future intentions.
Under Project Hostile Intent, scientists will aim to build devices that can pick up tell-tale signs of hostile intent or deception from people's heart rates, perspiration and tiny shifts in facial expressions.
The project was launched by the US department of homeland security with a call to security companies and government laboratories for assistance.
According to the timetable set out, the new devices are expected to be trialled at a handful of airports, borders and ports of entry by 2012.
The plans describe how systems based on video cameras, laserlight, infra-red, audio recordings and eye tracking technology are expected to scour crowds looking for unusual behaviour, with the aim of identifying people who should be approached and quizzed by security staff, New Scientist magazine reports.
The project hopes to advance a security system already employed by the US transportation security administration that monitors people for unintentional facial twitches, called "micro-expressions", that can suggest someone is lying or trying to conceal information.
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