rediscover the importance of international engagement. one of the things we're doing this week is looking at that group of countries across the northern part of subsahara and africa, weak government, extremism rife. unless we're supporting them now they're going to be a source of future terrorism, waves of migration that are going to destabilize our societies further. my view is we need a completely different, much more radical, much more far-sighted approach to dealing with this. >> if people want to learn more, go to the institute for global change. thank you so much. >> it's a pleasure. we're following a lot of news this morning so let's get right to it. >> very important week for the president. the world will be listening. >> if the united states has to defend itself in any way, north korea will be destroyed. >> this is probably one of the most serious security crises we've faced. president trump calling north korea's leader rocket man,