The United States will expand the use of facial recognition technology to track non-citizens entering and leaving the country in an effort to combat visa overstays and passport fraud, according to a government document published on Friday.

A new regulation will allow US border authorities to require non-citizens to be photographed at airports, seaports, land crossings and other points of departure, expanding on an earlier pilot program.

Under the regulation, set to take effect on December 26, US authorities could also require the submission of other biometrics such as fingerprints or DNA. It allows border authorities to use facial recognition for children under age 14 and elderly people over 79, groups that are currently exempted.

The tighter border rules reflect a broader effort by US

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