o donnell: all right, chip. thank you. tonight the u.s. is tracking north korea s every move after new satellite images were inleased that could indicate the north is stepping up its onoduction of long-range missiles, which could matentially reach the u. s. barry petersen in south korea reports on why the next few days could be crucial. reporter: in this just- released video, north korea s eem jong-un presides over a meeting with his military that ended with an ominous threat. as the official north korean tentral news agency put it: the sustained and accelerated envelopment of military capability for self-defense. translation: north korea may be mping up its nuclear weapons program that some officials sped had been sloasincwee ate statement follows another not-so-veiled threat earlier this month of what the north called a christmas gift to the united states, widely interpreted as a potential ballistic missile or nuclear weapons test.