It's not just fracking. Wastewater injection in Oklahoma has been linked to an increased number of earthquakes. And the increase is dramatic. In 2014, the state had three times more earthquakes than California.
Jake McNiece died Monday aged 93. McNiece was the last of a group of paratroopers who jumped into Normandy on D-Day. In 2002 The World's Chris Woolf helped reunite McNiece with one of his comrades, who'd been reported lost on D-Day.
The drug mixed used as the "lethal injection" in Oklahoma failed to work properly. One European activist lays blame on US officials who have tried to protect their supply of the deadly cocktail by shielding the suppliers from public exposure.
11 million. It's the estimated number of immigrants living in the US illegally. But how did we even get to that figure? From the public radio collaboration Fronteras Desk, reporter Adrian Florido finds out.
The Middle East, once a region of great religious diversity, has seen a mass emigration of minorities in recent decades. It's now one of the most religiously monolithic regions in the world. One Middle East scholar says the trend is likely to continue as tensions there continue to grow.
What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.
A few fragments of the Dead Sea Scrolls have made their ways into the hands of American evangelical Christians -- thanks to a man who was one of the first people to come into contact with the scrolls after Bedouin Arabs first found them in the late 1940s.