diplomacy

When the volcano started rumbling, North Korean researchers realized they didn't have the tools to predict if it might erupt. So they reached out to Western scientists for help.

Rudy Giuliani is a leading contender for secretary of state in a Trump administration, but as mayor of New York he waded into conflicts with Yasser Arafat and parking scofflaws at the United Nations.

Max Baucus, the ambassador to China since 2014, urges the U.S. to "draw some lines" and says, "We're not going to get bullied." Despite recent tensions, he remains upbeat about U.S.-China ties.

Randy Berry says the U.S. is supporting activists worldwide, but is also aware of risks they face. That was driven home with the killing of a gay activist who worked at the U.S. Embassy in Bangladesh.

President Obama departs Tuesday for Saudi Arabia, where he'll meet with King Salman and leaders of neighboring states. There's plenty to talk about: Relations have been strained on a number of fronts.

The corporation has U.S. approval, and ships could head for Cuba beginning in May 2016. But travelers can't be just tourists. They have to fit into one of 12 government-established categories.

It's a nightmarish job: No exercise or fresh air and little food and sleep for days at a time, all in an effort to persuade 200 countries to save Earth's climate and the planet. Can they do it?