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The Register - Airport to tag passengers

"Airport security chiefs and efficiency geeks will be able to keep close tabs on airport passengers by tagging them with a high powered radio chip developed at the University of Central London.

Airport security chiefs and efficiency geeks will be able to keep close tabs on airport passengers by tagging them with a high powered radio chip developed at the University of Central London.

Colin Brooks, Optag co-ordinator, said the trial would determine if the tags would be feasible in the light of obvious problems, such as the possibility that people might ditch their tags to avoid detection, or swap them with another person.

One solution might be to require people to use their tags to get through gates placed throughout the airport, he said. Perhaps a little like a shepherd might gate off his pasture and check the tags on his sheep as they passed into this field."