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Old Jan 25, 05, 1:07 pm
  #18  
wahooflyer
 
Join Date: Apr 2004
Location: Between RIC and IAD
Programs: AA Gold, Amex Plat
Posts: 3,920
How does the device authorize a credit card from 35,000 feet? Does it send out some sort of radio signal?

If it can't determine whether a card is valid while in flight, passengers can use cancelled or maxed-out cards to get their IFE for free on AA. (Not that I'm advocating this).
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