Afew decades ago, flying was a whole lot simpler. There was less congestion, for one thing. Fewer people flew because plane travel was too expensive to do on a regular basis. Security issues were not as strict and complicated as they became after the terrorist attacks of Sept. 11, 2001. The air-traffic control system wasn’t yet as antiquated as it is now, contributing to traveler-annoying delays.For concessionaires and in-flight caterers, flyers were seen as an elite group, and dining ...

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