New American Airlines tech to make sound when early boarders detected at O'Hare Airport

CHICAGO (WLS) -- American Airlines is putting new technology at Chicago O'Hare Airport to stop line-cutters.

The airline is expanding technology to stop people from boarding before their assigned group.

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Now, when someone's boarding pass is scanned before it's their turn, a sound goes off.

This technology is already in use at a few other airports around the country.