Morning Edition

First Aid Kit is two sisters, ages 18 and 21, from Sweden. But their music sounds like a slice of Americana: acoustic guitar, autoharp and lots of vocal harmony.

Klara and Johanna Soderberg wrote the songs for their new album, The Lion's Roar, while on their last tour. Many started with ideas, short riffs, recorded on a cellphone.

Booksellers and publishers are worried that Amazon is going to devour their industry. The giant online retailer seems to have its hands in all aspects of the business, from publishing books to selling them — and that has some in the book world wondering if there is any end to Amazon's influence.

The Florida Department of Law Enforcement faced accusations that a breathalyzer was giving inaccurate readings. So it commissioned a study. Fifteen employees consumed more than $300 worth of whiskey, mixers and Doritos, and then used the breathalyzer. Judges are considering whether the study was legitimate.

A frustrated judge in London recently exercised a little-known power: sending police into the street to rustle up jurors. The London Free Press reports lawyers in the case had questioned 130 potential jurors, and were still short. So unsuspecting pedestrians were hauled into court.

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DAVID GREENE, HOST:

As Mara just mentioned, the debate last night opened with a question about a claim made by Gingrich's ex-wife. Well, Marianne Gingrich gave her exclusive interview to ABC's "Nightline," putting the candidate's personal life in the spotlight once again. NPR's Tamara Keith has more.

TAMARA KEITH, BYLINE: The interview was incredibly hyped, in part because Marianne Gingrich has been silent so far on her ex-husband's presidential candidacy. This was her first television interview since their 1999 divorce.

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DAVID GREENE, HOST:

With those stakes high in South Carolina, the political ads are getting more pointed.

As NPR's Brian Naylor reports, the candidates themselves are taking aim less at each other and more at the White House.

BRIAN NAYLOR, BYLINE: The day before the South Carolina primary, the remaining Republican candidates are making their final TV pitches to voters. Here's part of what the Mitt Romney campaign bills as its closing argument.

(SOUNDBITE OF A POLITICAL ADVERTISEMENT)

Newt Gingrich's swift rise has been fueled by one thing above all — his forceful performances in the debates. And Thursday night, Gingrich was dominant from the start when he got the first question. It was about an explosive television interview with his ex-wife Marianne.

David Greene has business news.

Renee Montagne has the Last Word in business.

On the campaign trail, GOP presidential candidate Rick Santorum often discusses his opposition to abortion rights and gay marriage. That message served him well in Iowa with its large contingent of evangelical voters. Christian conservatives are also dominant in South Carolina, which votes Saturday. Santorum hopes to repeat his Iowa performance, but he's been struggling to keep pace in polls.