An unusual ground stop was issued to some pilots for a short period of time following a North American Aerospace Defense Command alert of a launch of a North Ko

An unusual ground stop was issued to some pilots for a short period of time following a North American Aerospace Defense Command alert of a launch of a North Korean missile, a US official said Tuesday. The official says it was not a national ground stop and may have been issued by a regional air traffic control facility. “No warning was issued by NORAD HQ,” regarding a potential threat to the US, according to Captain Pamela Kunze, the chief NORAD spokesperson I'm confused. Did NORAD do it or not?