More than 500 former officials who once led Israel's military and security agencies are asking President Trump to help stop the war in Gaza. NPR's Ailsa Chang speaks with one of them.

We speak with James Larkin, the head of a project in South Africa that's experimenting with using radiation to prevent rhino poaching. They sedate the animals and inject radiation into their horns.

Fourteen million people in Sudan have been displaced by war and famine. The Atlantic's Anne Applebaum writes about the scale of destruction in her article, "The Most Nihilistic Conflict on Earth." ...

Special Envoy Steve Witkoff is in Moscow to talk to Russian President Vladimir Putin about ending the war in Ukraine. Former Special Representative to Ukraine Kurt Volker weighs in on how the ...