Here’s what you need to know at the end of the day.
The president calls the Iran nuclear deal an embarrassment, but ending it would destroy his credibility in any talks over North Korea’s arsenal.
The president declined to tell reporters what he planned to do, though, saying, I’ll let you know what the decision is.
Despite a long record of intelligence warnings, there is no evidence that Washington has ever moved with urgency to cut off Pyongyang’s access to a rocket fuel.
Technology, building codes, weather forecasts and a more sophisticated understanding of mass evacuation helped keep the death toll low, experts say.