How Airlines Quietly Became Banks

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Writing by Sam Denby
Editing by Alexander Williard
Animation by Josh Sherrington
Sound by Graham Haerther
Thumbnail by Simon Buckmaster

References:
[1] https://americanairlines.gcs-web.com/static-files/ceb67596-d59a-41e3-ad0c-b5556dd43b4a
[2] https://ir.united.com/static-files/1c0f0c79-23ca-4fd2-80c1-cf975348bab9
[3] https://www.researchgate.net/publication/257430933_30_years_of_frequent_flyer_programs