Justine Kenin

Most of us learned about the world's oceans in elementary school. There's the Pacific, the Atlantic, the Indian and the Arctic.

Now, there's a sea change ahead.

Thanks to National Geographic, you'll soon see a fifth ocean on your maps. It's now officially recognizing the Southern Ocean, the waters swirling around Antarctica, marking the first time the organization has made such a change since it started drawing up maps over a century ago.

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Updated June 3, 2021 at 6:35 PM ET

Last month, a cyberattack on the company Colonial Pipeline, which operates a pipeline providing nearly half the East Coast's fuel supply, triggered a massive shutdown. Hackers infiltrated its computer network and demanded more than $4 million in ransom; the company shut down the pipeline.

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This week, ALL THINGS CONSIDERED turns 50. Joel Abrams of Boston recalls making dinner one night in 1991 and listening to a story about Haitian cane cutters in the Dominican Republic. Here is an unnamed cutter heard through an interpreter.

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With this program marking 50 years on the air today, listeners shared moments they heard here that stuck with them.

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For Canice Flanagan of San Francisco, one such moment was in May 2008.

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May 3 may not seem like much, but it is the date that this show first hit the airwaves way back in 1971.

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TV news aired on three networks.

CHANG: Milk cost 50 cents a gallon.

CORNISH: Lew Alcindor had just led the Milwaukee Bucks to an NBA title.

CHANG: National Public Radio may not have had many listeners that first broadcast, but those who did tune in tended to stay around for more.

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We all know the five senses - sight, sound, smell, taste and touch. But when author Lindsey Parker Rowe went through therapy with her toddler who'd been diagnosed with autism, she learned that there are three more.

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