According to the long Washington Post story on airport security this morning, "modification" of a ticket within 72 hours of flight is a "behavior" that the "computer Assisted Passenger Pre-screening Program" (CAPP) looks for.

Does anyone know whether getting an upgrade counts? I ask partly because my boarding pass was marked "S" for the first time last week at FCA when a subsequent segment of the journey had been upgraded 24 hours earlier.



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