The Obama administration has issued a proposal detailing how coverage for contraception will be paid for under Obamacare. The health overhaul law requires insurance plans to provide birth control coverage, but those opposed to artificial contraception argue they should not be made to use their own funds to pay for it. Audie Cornish talks to Julie Rovner.

Marco Rubio has been the junior senator from Florida for barely two years, but he's already considered a likely 2016 presidential contender.

The 41-year-old Republican's political star rose still higher this week when he joined a bipartisan group of senators offering a path to citizenship to millions of unauthorized immigrants.

Burger King has acknowledged this week that some of its burgers in Britain and Ireland included horsemeat, the latest development in an ongoing scandal.

Horsemeat actually contains just as much protein and far less fat than beef, according to nutritionists.

In 1992, Mae Jemison became the first African-American woman to fly in space when she served as a science mission specialist. We've invited Jemison to play a game called "Excuse me? When do we get to the Southwest terminal?" Jemison has flown in the space shuttle Endeavour, so we thought we'd ask her questions about a sometimes more unpredictable vehicle ... the airport shuttle.

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PETER SAGAL, HOST:

We want to remind everybody they can join us here most weeks at the Chase Bank Auditorium in downtown Chicago, Illinois. For tickets and more information, go to wbez.org.

You can find a link at our website, that's waitwait.npr.org. There you can also find out about our big simulcast cinema event on May 2nd, WAIT WAIT live in a theater new you. Spoiler alert: we're even more attractive than you imagined. Am I right?

(APPLAUSE)

SAGAL: Take their word for it.

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CARL KASELL: From NPR and WBEZ-Chicago, this is WAIT WAIT...DON'T TELL ME, the NPR News quiz. I'm Carl Kasell. We're playing this week with Charlie Pierce, Brian Babylon and Faith Salie. And here again is your host, at the Chase Bank Auditorium in downtown Chicago, Peter Sagal.

PETER SAGAL, HOST:

Thank you so much.

(APPLAUSE)

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PETER SAGAL, HOST:

Time to roll on to our final game Lightning Fill in the Blank. Each of our players has 60 seconds in which to answer as many fill in the blank questions as they can, each correct answer now worth two points. Carl, can you give us the scores?

CARL KASELL: Charlie Pierce has the lead, Peter. He has four points. Faith Salie has three. Brian Babylon has two.

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AUDIE CORNISH, HOST:

From NPR News, this is ALL THINGS CONSIDERED. I'm Audie Cornish.

MELISSA BLOCK, HOST:

And I'm Melissa Block.

CORNISH: And we begin this hour with a report on today's suicide bombing in Turkey. The target, the U.S. embassy in Ankara. The attack killed two people, a guard and the bomber. The White House called it an act of terror but had no information on the motive behind the blast. Turkish authorities identified the bomber as a member of an outlawed left-wing group. NPR's Peter Kenyon has our story from Istanbul.

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AUDIE CORNISH, HOST:

Swiss bank accounts, bribes, embezzlement, fraud up to the highest levels of government. Those are the headlines out of Spain this week amid allegations of under-the-table payments to top conservative politicians, including Prime Minister Mariano Rajoy. His party denies it all and Rajoy has called an emergency meeting for tomorrow.

Lauren Frayer reports from Madrid on how Spaniards are finally saying enough.

Barney, a Scottish Terrier who loved playing with his soccer ball and golf ball and was better known as President George W. Bush's pet, has died.

"Barney was by my side during our eight years in the White House," Bush said in a statement posted on his Facebook page. "He never discussed politics and was always a faithful friend. Laura and I will miss our pal."

Barney was 12 and died after a battle with lymphoma.