PBS NewsHour

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The inventor of behavioral economics explains how to play the ultimatum game. Photo by Getty Images Editor’s Note: Let’s play the ultimatum game. Here’s how it works: I give your friend $20. He has to share a portion of his $20 with you...
Ziad Ahmed (center) talks about Redefy’s campaign against racism and stereotypes at the Princeton Public Library in New Jersey in April. Photo courtesy of Redefy website As people all over the nation grapple with issues of racism and...
A Muslim child looks out the window as his mother offers prayers inside the Grand Mosque during the holy month of Ramadan on June 26, 2015, in Srinagar, India. Photo by Yawar Nazir/ Getty Images As a kid growing up, whenever I heard about Cat...
Tevin Johnson-Campion said he was at the court to support his parents, who have been together for 24 years. They married in California in 2008, but their marriage was not previously recognized in their home state of Kentucky. “They are just as...
The body of a tourist shot by a gunman lies near a beachside hotel in Sousse, Tunisia on June 26. Photo by Amine Ben Aziza/Reuters A gunman disguised as a tourist killed at least 37 people in a popular beach town in Tunisia on Friday. Also Friday, a...
Artist rendering of the New Horizons probe approaching Pluto and one of its moons. Image by Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI) Less than three weeks from a historic flyby of the dwarf...