TONIGHT HIS HIDDEN NUCLEAR BASES HAVE BEEN REVEALED. NUCLEAR BASES HAVE BEEN REVEALED. ANDREA MITCHELL HAS BEEN REVEALED. ANDREA MITCHELL HAS LATE DETAILS. ANDREA MITCHELL HAS LATE DETAILS.>>Reporter: TONIGHT, LATE DETAILS.>>Reporter: TONIGHT, U.S. OFFICIALCHOFFICIALS CONFIR>>Reporter: TONIGHT, U.S. OFFICIALCHOFFICIALS CONFIR NORTH KOREA IS ILL U.S. OFFICIALCHOFFICIALS CONFIR NORTH KOREA IS ILL… Continue Reading North Korea Still Building Ballistic Missiles, Say U.S. Officials | NBC Nightly News