U.S. airports debut document scanners.A new device that scans documents for traces of explosives is now being used to screen selected passengers at four of the busiest U.S. airports. According to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. USA Today, federal security screeners have begun testing the equipment at Chicago's O'Hare Inter-national Airport, Los Angeles Inter-national Airport, John F. Kennedy International Airport
John F. Kennedy International Airport (IATA: JFK, ICAO: KJFK, FAA LID: JFK in New York New York, state, United States New York, Middle Atlantic state of the United States. It is bordered by Vermont, Massachusetts, Connecticut, and the Atlantic Ocean (E), New Jersey and Pennsylvania (S), Lakes Erie and Ontario and the Canadian province of , and Washington Reagan National Airport to detect chemical residue on the surface of items such as wallets, passports, and airline boarding passes. Only passengers selected by security and those who set off alarms at checkpoints will be required to go through the document screening, according to the Transportation Security Administration (TSA TSA See tax-sheltered annuity (TSA). ). If a passenger triggers the device, he or she will then go through a questioning process about where they have been and what they have touched. Dozens of chemicals could trigger the scanners, including nitroglycerin nitroglycerin (nī'trōglĭs`ərĭn), C3H5N3O9, colorless, oily, highly explosive liquid. It is the nitric acid triester of glycerol and is more correctly called glycerol trinitrate. taken by heart patients, fertilizer, and gunpowder residue. The TSA is spending $300,000 to deploy a scanner at each of the airports. Officials are weighing whether to buy scanners for all the nation's 429 commercial airports. |
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