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Copyright 2015 NPR. To see more, visit http://www.npr.org/.

There's a term traders use when the price of a commodity like oil has fallen because of oversupply but seems guaranteed to rise again.

It's a market that's "in contango," says Brenda Shaffer, an energy specialist at Georgetown University. "It almost sounds like a sort of great oil dance or something."

And Shaffer says that some oil speculators see an oil market that is in contango in a major way.

The execution of three inmates has been put on hold, as the Supreme Court intervenes in a case that involves the controversy over the drugs states use to put people to death. The justices cited the sedative midazolam, which has been used in three executions that did not go smoothly.

The Supreme Court's stay is likely to hold until April, when it will hear arguments from three inmates who say that Oklahoma's execution protocol violates the U.S. Constitution.

The court's order did not elaborate on the reasons or debate behind the move:

They call it "The last McDonald's hamburger in Iceland." Purchased more than five years ago, it has been displayed in the Na­tional Mu­seum of Ice­land. Now a webcam has been devoted to the hamburger (with a side of fries), among the last sold by the American company in the country.

In the years following the invasion of Iraq, it became a truism that Americans simply didn't want to hear about the war — especially at the movies. While there were scads of films about Iraq, including Kathryn Bigelow's Oscar-winning The Hurt Locker, none was able to attract a big audience. Until American Sniper.

The name Junípero Serra is well known in California: Schools and streets are named in his honor, and statues of the 18th century Spanish missionary still stand. But Native American activists are far less enamored with the friar, saying Serra was actually an accomplice in the brutal colonization of natives. They object to Pope Francis' recent announcement that he will canonize Serra when he travels to the U.S. this fall.

World maps distort — it's inherent in their design.

Take a spherical object (the Earth) and try to represent it on a flat plane (paper), and some parts of the sphere are going to get stretched. On most maps, Canada and Russia get puffed up, while countries along the equator get shrunk.

Every now and then, though, you stumble across a map that enlightens.

Teens can't control impulses and make rapid, smart decisions like adults can — but why?

Research into how the human brain develops helps explain. In a teenager, the frontal lobe of the brain, which controls decision-making, is built but not fully insulated — so signals move slowly.

"Teenagers are not as readily able to access their frontal lobe to say, 'Oh, I better not do this,' " Dr. Frances Jensen tells Fresh Air's Terry Gross.

Nobody does fake like China. In 2011, a fake Apple store popped up in the southwestern city of Kunming. It looked so authentic, even some employees thought it was real.

This year, three farmers in central China set up a fake local government.

This month, police shut down a fake bank in the eastern city of Nanjing, where depositors reportedly lost nearly $33 million.

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