The Transportation Security Administration (TSA) launched a quicker version of PreCheck, although the service is currently available at only 15 airports in the United States.

TSA PreCheck Touchless ID utilizes an enhanced facial recognition technology, Traveler Verification Service, which creates a secure biometric template of a passenger’s live facial image and compares it to images the passenger previously provided to the federal government.

The live image is taken at an airport checkpoint. The technology is currently being used by U.S. Customs and Border Protection (CBP), according to TSA's website .

It's supposed to be faster because passengers do not need to present an ID card or boarding pass. Passengers who have consented to use the technology can opt out at any time.

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