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The Sichuan peppercorn that makes our mouths tingle activates the same neurons as when our foot falls asleep. Scientists are hoping the connection unlocks clues for how to turn those neurons off.

Once status symbols for newly minted millionaires, horses are now the voiceless victims in Spain's economic crash. Two sisters are adopting horses that might otherwise end up in the food supply.

Secretary of State John Kerry is in Geneva to meet with his diplomatic counterparts from Russia, Ukraine and the European Union. They are trying to find a resolution to the crisis in Ukraine.

The pup was discovered 100 miles from the ocean. It mostly likely swam up the San Joaquin River, hopped out and couldn't find its way back.

Also: Nobel laureate Gabriel Garcia Marquez's health is said to be stable but "very fragile"; Dave Eggers' new book is called Your Fathers, Where Are They? And the Prophets, Do They Live Forever?

Before foreign ministers gathered in Geneva, the prospect for progress on reducing tensions appeared to be be slim. But afterward, Secretary of State John Kerry said differences had been narrowed.

A 19-year-old computer science student was taken into custody for allegedly exploiting the bug to steal sensitive information from government servers.

Guest Host Celeste Headlee learns more about the United States' deportation policies from Muzaffar Chishti of the Migration Policy Institute.

Howard Dean Bailey made a good life for himself in the U.S. But then, a decades-old run-in with the law led to his deportation. Does his story show the system failing or working?

Scientists based their technique on the one used to create the sheep Dolly years ago. These cells might one day be useful in treating all sorts of diseases.