thank you to diaandiana. let's get to anderson. >> the threat of a nuclear threat on the united states. is it bluster from a young dig da dictator or is the threat real? i'm also joined by a reporter that was in north korea that was there when they shut down the nuclear reactor that they're vowing to restore. we'll try to put this perspective. and crime and punishment, an arrest today in connection the killings of a kaufman county, texas, district attorney and his wife. it's not the arrest officials hoped for and the triggerman remains on the loose, authorities say. our legal analyst jeffery toobin joins us, former federal prosecutor and senior correspondent john miller, formerly of the fbi and lapd join me on why the killing is shaking the law enforcement community so badly. those stories, tonight's "ridiculous" and a lot more. >> and now our fifth story "outfront." standing with your other woman. well, former south carolina governor mike stanford was