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People are splurging on first-class tickets in the hopes of a 3-minute TSA line

Travelers checking in at United Airlines' Premier Access desk at Chicago's O'Hare Airport.JOSHUA LOTT/AFP via Getty ImagesSome passengers have figured out a way to get through TSA fast.Passengers told Business Insider they shelled out for first-class tickets to get past snaking lines.Several airlines do offer first-class passengers expedited priority lines…