NORAD probably wanted to clear some airspace to better track the missile But NORAD said they didn't ask for it: The official says it was not a national ground

NORAD probably wanted to clear some airspace to better track the missile But NORAD said they didn't ask for it: 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.