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Prime Challenge Sends Mathematicians On Infinite Search

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University of New Hampshire professor Yitang Zhang announced this week that he has come close to solving a centuries-old problem: proving the twin prime conjecture. Host Scott Simon gets an explanation from Weekend Edition Math Guy Keith Devlin of Stanford University.
NPR

'It's A Surviving Tool': 'Native' Tells Satirical Stories Of Life In Israel

NPR's Kelly McEvers talks to author Sayed Kashua, an Israeli-Palestinian whose satirical weekly columns in Haaretz newspaper are collected in his new book called Native.
NPR

Chipotle's Food-Safety Woes? Don't Expect Sympathy From Rest Of Industry

Chipotle has scorned some mainstream farming practices, like GMOs and antibiotics. Now the fast-casual chain is taking hits over food safety, and past targets of its attacks are taking revenge.
NPR

In Trump's German Ancestral Village, The Locals Are Not Impressed

"Ich bin ein Kallstadter," Donald Trump likes to say. But many of the villagers are more proud of other famous American descendants with links to Kallstadt: the Heinz family, of ketchup fame.
NPR

Colonialism Comment Puts Facebook Under Scrutiny

A Facebook board member lambasted a decision by regulators in India, the social network's second-largest market. He thereby sparked new scrutiny of Facebook's intentions in that country.

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