ABC News—The FAA has lifted the nationwide ground stop at airports. The Federal Aviation Administration ordered a rare nationwide ground stop Friday for all airports that lasted more than four hours , saying it was due to extraordinary circumstances and safety. Department of Homeland Security Sec retary Markwayne Mullin told reporters it was due to a “telecommunications outage” and that there was no indication the incident was a “nefarious attack.” Nearly 5,000 flights were canceled amid the issue. This is a developing story. Categories: Local News, National News, News Tags: FAA ...read more read less