CHICAGO -- In a warning ahead of the Thanksgiving holiday, Department of Transportation Secretary Sean Duffy says there could be a "massive" disruption to air travel if the government shutdown drags on.

The government's flight cuts increased to 6% at the nation's busiest airports on Tuesday. They are set to rise to 10% Friday.

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"I think we would see that significant disruption coming this next weekend, maybe as early as Friday, and I think you're going to have airlines that make serious calculations about whether they continue to fly," Duffy said.

Duffy appeared at Chicago O'Hare International Airport on the same day the Federal Aviation Administration increased its requirement of airlines to cut 6% of all domestic flights. The re

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