A scenic view of aircraft flying overhead photographed on November 29, 2010 in Raleigh, North Carolina. Bruce Bennett/Getty Images hide caption
The Federal Aviation Administration (FAA) has issued a nationwide ground stop for all U.S. airports following a "communication issue impacting all Air Route Traffic Control Centers," according to Transportation Secretary Sean Duffy.
Friday afternoon, Duffy said: "FAA technicians are investigating the issue. We will provide immediate updates as we have them."
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