Mind-reading systems as air security. Network of high-tech machines analyzes body language and reads mind. WeCU: The logic is that people can’t help but reacting, even if only subtly, to familiar images that suddenly appear in unfamiliar places.WeCU system would use humans to do some of the observing but would rely mostly on hidden cameras or sensors that can detect a slight rise in body temperature and heart rate. Far more sensitive devices under development that can take such measurements from a distance would be incorporated later. … a souped-up polygraph. It would subject people pulled aside for additional screening to a battery of tests, including scans of facial movements and pupil dilation, for signs of deception.