Device That ‘Smells’ Human Fear Could Identify Terrorists

The technology relies on recognising a pheromone — or scent signal — produced in sweat when a person is scared. Researchers hope the fear detector will make it possible to identify individuals at check points who are up to no good. Terrorists with murder in mind, drug smugglers, or criminals on the run are likely to be very fearful of being discovered. However, calm they might appear on the surface, their bodies could give them away