koreans have never really loud people to do. the only one who's gotten into any of the nuclear facilities is sid hecker, who says it will take 15 years to dismantle their program. others say it can happen faster than that, but nothing can happen until we know everything about their program and that has never happened. >> sid hecker is a renowned nuclear expert at stanford, unimpeachi unimpea unimpeachable. coming up, supreme anxiety. nbc news confirming who donald trump's top three contenders are for the supreme court, four days before the president is expected to reveal his choice. a closer look at the candidates, when we return. you're watching "andrea mitchell reports" on msnbc. my day starts well before i'm in the kitchen. i need my blood sugar to stay in control. i need to shave my a1c. weekends are my time. i need an insulin that fits my schedule. ♪ tresiba® ready ♪ (announcer) tresiba® is used to control high blood sugar