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Airports will soon a new layer to their security procedures. Several airports in Europe will giving lie detector tests to passengers. Special lie detector machines will artificial intelligence to test travellers. The lie detector machines backed by a European Union project i-BorderControl. The first machines will be at border checkpoints in Hungary, Greece and Latvia. Airports in these countries will out trials on the lie detector machines this month. Travellers from outside the European Union will have to the test. They will look into a webcam and questions from a computer-animated immigration official. The computer-generated animation will to the race and language of the traveller.

A European Union spokesperson the virtual border guard will passengers' faces and analyze their micro-expressions. They will these expressions to find out if the passenger might be . A human security guard will take over if the lie-detecting software a security risk. The procedure will initially passengers into two types. Low-risk travellers will be basic information in the lie-detection process, while higher-risk passengers will more detailed questions. A psychology expert if the system would work. He said: "If you ask people to lie, they will do it differently and very different behavioral cues than if they truly lie....This is a known problem in psychology."