It has long been known that a person's ears are as distinctive as their fingerprints, but now scientists at the University of Southampton have come up with a system of scanning them and using the individual structures that make up the ears to form an electronically readable ID.
Cameras at the security scanner could match the passenger with a database, such as the biometric information chip now becoming commonplace on passports.
Long hair remains one of the problems to be surmounted.
