FAA issues a nationwide ground stop for all flights in the United States.

WASHINGTON - The Federal Aviation Administration issued a rare and unexpected nationwide ground stop Friday afternoon, citing a “temporary telecommunications outage,” though Homeland Security Secretary Markwayne Mullin said there was no indication of a nefarious attack. Mullin told reporters that the Trump administration is not ruling out a cyberattack but that it doesn’t yet have evidence pointing in that direction. “The first thing we want to do is make sure we restore the communications. We get all the flights on the ground, and then we get back to normal operations. But we’re going to continue to work to find out what the root of the cause is,” he said. “We’re not ruling out anything at this point. The first thing is the safety of everybody that’s flying.” Speaking in the early evening, Mullin warned that it may take some time to restore air traffic to normal, saying that “this isn’t going to just be resolved and turned around within the next hour.” He said the problems were not connected to the Microsoft…