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Not only are Brazilian artists now getting big play in major museums around the world, but something new is happening inside Brazil: There's a burgeoning appetite for art.

A protest in the Russian Arctic has dramatized growing problems with oil drilling there. Every country has a stake in the enormously lucrative search for oil and gas in the Arctic, says professor Lawton Brigham. But pollution from reckless attempts at development are evident on an island near the Polar circle.

Republican presidential candidate Mitt Romney has shied away from TV interviews. But on Friday, he sat down for five interviews with the nation's top TV news outlets. Romney says he shouldn't be held responsible for what Bain did after 1999 because he had already left the company to run the Salt Lake City Olympics

The 2008 GOP presidential nominee came to the defense of Hilary Clinton's longtime aide on the Senate floor. While Sen. John McCain didn't mention Rep. Michele Bachmann by name, he made clear he wants her to stop suggesting the aide is helping the Muslim Brotherhood.

The publication of Vatican documents alleging corruption among cardinals has triggered a major crisis in the Holy See. It has shed light on a Vatican gripped by intrigue and power struggles like a Renaissance court, and some observers say it highlights the Vatican's dire need for structural reform.

The thought of bagpipes usually conjures up images of Scottish men in skirts — not auto-rickshaws and South Asian spices. But no country manufactures more bagpipes than Pakistan, and no place in Pakistan makes more of them than Sialkot, a bagpipe-crazy city near India-administered Kashmir.

South African Oscar Pistorius will run on artificial legs in the 400-meter Olympic sprint preliminaries in London Saturday. Pistorius is a double amputee who runs world-class times on his carbon-fiber limbs. Some question whether he has an unfair edge — so a lab studied his running motion.

It's a mobile gadget lover's dream week. Nokia, Microsoft and Google's Motorola introduce new smartphones. Amazon will show off a new Kindle. And all these companies are positioning themselves in advance of Apple's new iPhone 5, which comes out next week.

Former Minnesota Gov. Tim Pawlenty is the son of a truck driver, an evangelical Christian, a former presidential candidate, and for months now a loyal surrogate for Republican Mitt Romney. He's also considered a top contender to become Romney's pick for vice president.

The Queen of Versailles documents the rise and fall of David and Jackie Siegel, who lost their billions in the recession while building the biggest house in the U.S. Director Lauren Greenfield spoke to NPR about the film — and how the Siegels are an allegory for the overreaching of America.