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TSA Tests 3-D Airport Scanners That May Let Liquids Stay in Bags

  • Devices use CT technology to take hundreds of images of bags
  • Technology has promise of spotting more explosives and weapons

Photographer: Scott Olson/Getty Images 

The nation’s aviation security agency is beginning a test at 15 U.S. airports of new three-dimensional X-ray scanners that may someday allow passengers to bring liquids into their bags.

The Transportation Security Administration plans to add as many as 40 units -- the same as CT scanners used in the medical world -- at additional airports by the end of the year, TSA said in a press release Monday. It plans to have more than 145 in airports by October 2019, along with 16 at federal test facilities.