Nick Schifrin and Zach Fannin interview young Kenyans who have joined Al Shabaab, the Somalia-based terror group.
Nick Schifrin and Zach Fannin report on east Africa's deadliest terror group, Al Shabaab.
How a Panamanian law firm helps the rich hide their wealth.
The Pentagon is preparing for an extensive—and expensive—modernization of the country’s half-century-old land, air, and sea-based nuclear weapons. But how necessary is the nuclear triad today?
The military commander of America’s nuclear arsenal, Admiral Cecil Haney, says the triad's combination of nuclear arms makes it complicated for a would-be enemy to attack the United States.
Former Clinton era Defense Secretary Bill Perry clashes with Jim Miller who served as Under Secretary of Defense for Policy during the Obama administration. Perry says America does not need the triad.
The former military commander of America’s nuclear forces, Gen. James Cartwright (Ret.) says U.S. intercontinental ballistic missiles should be phased out.
See more behind-the-scenes photos from America’s nuclear stockpile.
Where is the balance between economic calculations that save more lives in the long-term and the individual human right to health care in the near?
China, the biggest emitter of greenhouse gases in the world, has paid a great environmental price for becoming the world's factory.
Paul Salopek brings PBS Newshour along on his "Out of Eden" journey along the ethnic fault lines of the southern Caucasus.
Paul Salopek makes a stop at one of the most important human migration sites outside of Africa. He is joined by PBS Newshour's Hari Sreenivasan.