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Five weeks after an economic crisis forced its closure, Greece's stock market reopened to a flurry of selling and falling prices Monday. Banks led the losses on the Athens Stock Exchange, which is also coping with poor manufacturing data.

When it opened, the Athens Stock Exchange General Index plummeted from 797.52 down to a new 52-week low of 615 — a drop of nearly 23 percent. But the index then recovered some ground, rising to 660 (a 17 percent drop) some three hours after trading began.

From Athens, NPR's Joanna Kakissis reports:

The inaugural 2016 debate for the White House Thursday will be the first time many voters will be tuning into the volatile GOP campaign for president, and candidates are praying they'll get a boost and not a bust from the face-off.

"The level of engagement has been very low," said Rick Wilson, a Florida-based national GOP strategist. "This will be a week where we will probably have record viewership on FOX News for a primary debate, and it's going to get a lot of attention and a lot of focus."

Eight months ago, Mexico's first lady, known for her fondness of designer clothes and European vacations, made a public promise to sell a multi-million-dollar mansion bought under controversial circumstances. She's purchasing the home, at below market rates, from a contractor with lucrative connections to her husband.

The scandal has been one of the biggest to rock the president's administration. And months later many questions remain regarding the questionable purchase — and the first lady hasn't sold her house.

In 1953, Dr. John Clements realized something fundamental about the way the lung functions — an insight that would ultimately save the lives of millions of premature babies.

The story begins in 1950, when the U.S. Army sent Clements, a newly graduated physician, to the medical division of what was then called the Army Chemical Center in Edgewood, Md. Clements was interested in doing research in biochemistry. His commanding officer was of a different mind.

This story is part of NPR's series Journey Home. We're going to the places presidential candidates call home and finding out what those places tell us about how they see the world.

As Martin O'Malley neared the launch of his presidential campaign, the former Baltimore mayor and Maryland governor said he wouldn't think of announcing his bid "anyplace else," even as the city exploded with riots after the death of Freddie Gray, a young black man who was fatally injured while in police custody.

The flooded streets and destroyed homes of the New Orleans neighborhood known as the Lower Ninth Ward were among the most powerful and iconic images from Hurricane Katrina and its aftermath 10 years ago.

Now, much of New Orleans is back — more than half of the city's neighborhoods have recovered some 90 percent of their pre-storm population.

That's not the case for the Lower Ninth.

Today, there's a feeling of desolation on nearly every block of the predominantly African-American neighborhood.

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According to a review of the results of 12,000 blood tests, the world of track and field has a doping problem that is as big as the one cycling had at the height of Lance Armstrong's popularity.

That's according to the Sunday Times and Germany's public broadcaster ARD/WDR, which obtained a leak of documents with the bloodwork of 5,000 athletes.

After a bunch of really nice humans helped a hitchhiking robot traverse the length of Canada and most of Germany, the robot was going to try to make it from Massachusetts all the way to California.

HitchBOT is the brainchild of two Canadian social scientists. As Frauke Zeller and David Harris Smith explained it in a piece for the Harvard Business review, it was an experiment meant to spark a discussion "about trust, notions of safety, and about our attitude towards technology."

A Mexican photojournalist, who worked for, among others, the investigative outfit Proceso, has been found dead along with four other people at an apartment in the country's capital.

According to Article 19, a group that advocates for press freedom, Rubén Espinosa is the 88th journalist killed in Mexico.

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