enrolled in school in north carolina because it was easier to buy weapons state law prohibits having weapons on campus grounds. steber faces charges for having weapons on campus and communicating a threat of mass violence university officials say they discovered the alleged plot when other students alerted security. kate steve patterson, thank you. up next tonight, the new threat from north korea. growing concerns kim jong-un could be building a submarine, capable of firing nuclear missiles nbc s andrea mitchell has the new photo evidence reporter: new satellite images from north korea suggesting what could be a new major nuclear threat from the regime kim jong-un s first submarine able to fire ballistic missiles, according to two national security experts no test appears imminent, but it appears to confirm kim s claim last month when he inspected a new submarine. a nuclear tip missile launch from a submarine would be very hard to track, very hard to target, very hard to preemp