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Li-Fi is a lot like Wi-Fi, but it uses light to transmit data. NPR's Scott Simon speaks to the man who invented the faster alternative: Harald Haas.

A gunman was taken into custody Friday night after opening fire inside a Planned Parenthood building in Colorado Springs, CO. Three people, including a police officer, were killed.

City and federal investigators showed a lack of urgency in dealing with the case, critics say. Local columnist and editor Carol Marin pins part of the blame on "the feds" and President Obama.

Prince's '80s-era classic has gotten a modern update — in Niger. Directed by Christopher Kirkley, starring the nomadic Tuareg people, this Purple Rain remake drops the kissing but keeps the attitude.

"Not Without My Daughter" told the story of an American mother and daughter fleeing Iran. Now that young girl is telling her own story in her memoir, "My Name is Mahtob."

Selfies aren't only for posting pictures of yourself. For people who suffer from Cotard's Delusion, in which a person believes they're dead, those self-taken pictures can be part of a cure.

Oklahoma is home to bison who roam freely on the last stretches of open prairie. Once a year, the bison are rounded up, vaccinated and de-wormed. It's part of the effort to bring back the herds.

President Obama says the U.S. must lead the charge to reduce burning of fossil fuels. But American lawmakers are divided on limiting carbon emissions and opponents say they'll challenge any new rules.

The storm dumped freezing rain from Texas all the way to Iowa. Authorities in Kansas reported several deaths due to car accidents and flooding claimed three lives in Texas.

Cruise liners aren't just about buffets and nightclub acts. There is a growing number of passengers who want to explore the local cultures, especially the music.