Takeoffs from airports throughout the US paused on Friday after the FAA issued a national ground stop "due to extraordinary circumstances and for reasons of safety." US Transportation Secretary Sean Duffy tweeted:
The FAA issued a nationwide ground stop for all U.S. airports following a communication issue impacting all Air Route Traffic Control Centers. FAA technicians are investigating the issue. We will provide immediate updates as we have them.
Jon Ostrower of The Air Current reports that the FAA has said it's "due to several impacts to ATC Frequencies and/or Radar capabilities." According to CNN, the last time there was a nationwide …