When it comes to sprinting, Jamaica reigns supreme.
At the Beijing Olympics in 2008, a Jamaican man — Usain Bolt — and a woman — Shelly-Ann Fraser-Pryce — took home the golds in the 100-meter race, and at this summer's London games, they're hoping to do it again.
If you visit the Caribbean island nation, you'll hear a lot of explanations for why they're so good, but let's start with the obvious: In Jamaica, kids really like to run.
The surface on which Kentucky Derby horses will race Saturday is a special piece of real estate, built for high performance and safety. The track is generically described as dirt, but is actually a careful mixture of river sand, silt and clay.
Khalid Sheikh Mohammed and four other men charged in the Sept. 11 attacks were supposed to be tried six years ago in a military tribunal created by the Bush administration.
But that system — which allowed hearsay evidence, among other things — faced questions about its fundamental fairness. When President Obama came into office, he put all the proceedings at Guantanamo on hold and asked that the commission system be revamped.
Since then, there has been an effort to make sure the trials at Guantanamo are credible, with both Congress and the Supreme Court weighing in.
The Obama administration today released a new set of rules for oil and gas drilling on public land. As NPR's Elizabeth Shogren reports, the rules are meant to keep companies from polluting water when they use the engineering technique known as fracking.
ELIZABETH SHOGREN, BYLINE: Hydraulic fracturing is what made the current drilling booms possible. Companies force hundreds of thousands of gallons of water, sand, and chemicals deep underground to open up cracks in the rock and make the oil or natural gas flow faster.
Hours after Facebook put out a call Tuesday for its users to register as organ donors, 6,000 people had already signed up. That's more than 15 times the number of people who normally register each day, according to Donate Life America, which is collaborating with Facebook.