LONDON - British airports hope to use radio ID tags to track passengers, cut delays and possibly tighten security.
Manchester airport has tested the system with 50,000 volunteers for six months, the Daily Telegraph reported.
"It enabled us to see how much time passengers spent airside and how efficient our security was," the airport's head of innovation, Yemmi Agbegi, told the Daily Telegraph.
If the tags, which are attached to boarding passes, are a success they could be used at London's Heathrow airport in about two years, the newspaper reported.
The use of the ID tags has alarmed privacy advocates.
Sophie in 't Veld, a Dutch Liberal MEP, has demanded reassurance about similar projects from EU officials.
"Does it serve a useful purpose? So many measures have been taken since September 11. In many cases they are ineffective and they have not been introduced in a democratic way," she said to the Daily Telegraph.
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