The United States resumes air traffic after a complete stop due to a malfunction in air traffic control systems.
Air traffic resumed in the United States on Friday, after outbound flights across the country were grounded for more than four hours due to a malfunction in the communication systems of air traffic control centers. The suspension, the longest of its kind since the attacks on September 11, 2001, led to the cancellation of about 4,700 flights and the delay of another 10,000, while authorities denied that it was the result of a cyber attack or related to malfunctions in Microsoft systems.
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