SINGAPORE - It could be the answer for every weary air traveler, a high-tech screening system that filters passengers according to risk and scans and "sniffs" them as they walk through, taking a fraction of the time of a usual security check.
Customs and immigration could also be combined at the same screening station, curbing queues and increasing time for that all-important pre-flight browsing or duty-free shopping.
At an annual meeting of airline chiefs in Singapore, the International Air Transport Association (IATA) displayed for the first time a mock-up of a three-channel passenger screening system of the future.
Pre-flight screening categorizes people according to risk, which then channels them into "enhanced", a polite way of saying highest risk, "normal" and then the least risky, which is "known traveler".
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