The cause of the disruption of flights in America is unknown; There is a technical defect or operational error.
Flights in the United States have returned to normal after a widespread disruption in the air traffic control system, but the exact cause of this incident is still unknown. The US Secretary of Transportation rejects the possibility of a cyber attack, seeing the fatigue of the equipment and the need to renew the navigation infrastructure as one of the main challenges of this system.
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