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PBS News Hour
What may have caused computer outage that grounded flights
The nation's air travel system had another long, difficult day Wednesday. More than 1,100 flights were canceled and 7,700 were delayed when a critical system failed at the Federal Aviation Administration. The outage forced the FAA to call a nationwide halt to operations, wrecking travel plans for millions. Amna Nawaz and Miles O’Brien discuss the reliability and vulnerability of the system.
