and filed a report. greg? reporter: there has to be a morning after even for pyongyang, north korea. you are looking at it behind me. this is kim jong il square. a short while ago this was filled with 50,000 dancers celebrating or instructing to celebrate the next leader of north korea, his name is king jong un. son of the current leader kim jong il. u.s. is watching this closely, the past and current behavior in north korea described as erratic. the future looking uncertain. uncertain perhaps for the lives of the people we watched dancing tonight. tomorrow, some of them will get up to gruelling lives. eric? eric: thank you, greg. jamie: well, pakistan ending an 11-day blockade by reopening the key border process used by the nato troops. is this a sign they re working closer with the u.s. the way we need them to? we will look at that. eric: there is an investigation now underway in a mass overdose at a college party. dozen teens were rushed to the