American Airlines grounds flights at 3 airports over computer glitch

DALLAS, TX (AP) — American Airlines flights to Dallas, Chicago and Miami were briefly stopped on Thursday by a computer problem that prevented passengers from checking in.Airline officials said they fixed their computer systems after less than two hours but were still trying to determine the exact cause of the interruption.
American spokesman Casey Norton said there was no indication that the airline’s computers had been hacked.
The midday failure affected flights on Americ