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A senator had trouble saying no to TSA's voluntary facial recognition
washingtonpost.com
When Merkley said no to the face scan at Washington’s Reagan National Airport, he was told it would cause a significant delay, a spokeswoman for the senator said.
There was no delay. The spokeswoman said the senator showed his photo ID to the TSA agent and cleared security.
I try to leave time for this sort of thing, because I intend to push back in such scenarios.