Vaccination campaigns have erased polio in almost every country in the world, but the disease persists in Afghanistan, Pakistan, and Nigeria. Obstacles in each country, including religious extremism, difficult terrain and transient populations, make eradication efforts difficult.
FBI agents believe they have a credible lead on the whereabouts of Jimmy Hoffa's body. If they're right, it will solve a longstanding mystery, which will also deflate Hoffa's resonance in popular culture.
Did a 10-pound bag of potatoes really cost $15 back in 2008? We get to the bottom of some puzzling numbers in the lawsuit alleging America's potato growers have become a spud cartel.
There was a time — a time long, long ago — when MySpace dominated the teen social-media world. Not anymore. NPR's Sami Yenigun looks at how teenagers use various social platforms in today's increasingly segmented online universe.