Lourdes Garcia-Navarro

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And now for an update - two years ago when I was NPR's Brazil correspondent, I danced in Rio de Janeiro's famous Sambadrome with the Vila Isabel Samba School. Here's me at the end of that experience.

(SOUNDBITE OF ARCHIVED BROADCAST)

In the summer of 1967, Linda Walker was at Girl Scout camp in North Carolina when a lightning bolt struck her.

She says she was in a tent with three other girls when they all ran out after the crackle and boom. Walker was on the floor, unresponsive.

"But as Girl Scouts you always keep up with your buddy — you never lose track of your buddy," Walker says. "And my buddy walked out, ran out of the tent without me, but realized I wasn't with her and came back. Had she not done that, I wouldn't be here today ... because she saved my life."

This past week, a FedEx employee from Germantown, Tenn., made a massive discovery — and it wasn't in any packages. John Pace found the largest prime number known to humankind.

And that number goes on to more than 23 million digits.

"So it's longer than anybody really wants to sit down and hear," he says.

If you're not great at math, here's a primer: Prime numbers can only be divided by 1 and themselves.

Editor's note on Jan. 18: This story should have noted that artnet News was the first to report that the High Museum's proportion of nonwhite visitors has grown to 45 percent and now is close to the percentage of people of color who live in the Atlanta metropolitan area. That news site's report about the museum's "valuable case study" concerning how to diversify audiences is online here.

When Hurricane Harvey hit Houston in August, Tosha Atibu and her husband Atibu Ty Ty were asleep in their home with their children. A neighbor woke them up to tell them the water was rushing up the street.

"It was really scary situation. ... the water was coming in from the front yard, from the back yard, flooding everywhere. We had to act immediately," Tosha Atibu says.

Just off a Houston freeway, in a strip mall with an Indian tailor and South Asian grocery store, is a small restaurant with an out-size reputation. It's called Himalaya and its chef and owner is a Houston institution.

Chef Kaiser Lashkari is a large man with a bushy salt-and-pepper mustache. He's constantly in motion — greeting clients, inspecting steaming dishes carried by busy waiters, calling out to his wife overseeing the kitchen. He offers us food before we've even sat down.

In a new hour-long special, "Sexual Harassment: A Moment of Reckoning," Weekend Edition Sunday host Lulu Garcia-Navarro takes a deep dive into a national conversation that is growing louder by the day.

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Time now for the Call-In. This week we asked you for your stories about living on a hundred-thousand dollars a year.

UNIDENTIFIED MAN #1: Hello.

UNIDENTIFIED WOMAN #1: Hello.

KRIS WATERIS: Hi, my name is Kris Wateris (ph).

You scroll through your friend's Instagram feed and see the most beautiful setting, and think: "I want to go there." And so you do.

According to travel photographer Brent Knepper, you are part of the problem.

In The Outline's article "Instagram is Loving Nature to Death," Knepper says that thanks to the photo sharing app, some of the best-kept secrets of the natural world are drawing big crowds and literally altering the landscape.

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Right after the U.S. election last year, Mike Tippett saw an opportunity.

He'd been talking to his friends in Silicon Valley and they were nervous about the newly elected president's attitude toward immigration.

"Many of the start-ups and technology companies in the States and across the globe are made up of people who are not necessarily from that country," Tippett says.

Almost half of all American start-ups were actually founded by immigrants.

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Like many Americans, Chris Michel woke up Monday morning to the horrific news of the massacre in Las Vegas, which left 58 people dead as well as the shooter Stephen Paddock and nearly 500 injured.

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Earlier this month, when I was in Miami reporting on Hurricane Irma, I visited the Miami-Dade animal shelter. In the chaos after the storm, with downed power lines and flooding, dogs were being dropped off. Some were lost or strays or they had been abandoned by their owners. The people dropping them off spotted them wandering alone in the city.

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And to recap our main story, Hurricane Irma is moving toward west coast Florida cities.

LULU GARCIA-NAVARRO, HOST:

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And now we return to our main story, the hurricane in Florida. My colleague Lulu Garcia-Navarro joins us from the newsroom at our member station WLRN in Miami. Hi, Lulu.

LULU GARCIA-NAVARRO, HOST:

Hi.

WERTHEIMER: So what is the latest where you are?

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For the second time in two weeks, there is a huge tropical storm that seems poised to hit the American mainland.

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The Santa Monica Symphony Orchestra will have a guest conductor this week: Dennis Prager. He'll conduct Haydn's Symphony No. 51 at an orchestra fundraiser.

As a new parent, Jack Gilbert got a lot of different advice on how to properly look after his child: when to give him antibiotics or how often he should sterilize his pacifier, for example.

After the birth of his second child, Gilbert, a scientist who studies microbial ecosystems at the University of Chicago, decided to find out what's actually known about the risks involved when modern-day children come in contact with germs.

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And this is The Call-In. Today we're talking about refugees. And we wanted to hear your family stories.

UNIDENTIFIED MAN #1: Hi.

UNIDENTIFIED WOMAN #1: Hi.

UNIDENTIFIED WOMAN #2: Hello. My name is...

HEVAL KELLI: Heval Kelli.

Alan Alda's father wanted him to become a doctor, but it wasn't meant to be. "I failed chemistry really disastrously ... " Alda says. "I really didn't want to be a doctor; I wanted to be a writer and an actor."

Which is exactly what happened, but Alda didn't leave science behind entirely. His new book, If I Understood You, Would I Have This Look on My Face?, is all about communication — and miscommunication — between scientists and civilians.

For many people, New Orleans is practically synonymous with jazz; it's the birthplace of both the music and many of its leading lights, from Louis Armstrong to Christian Scott aTunde Adjuah. But now, one organization is working to draw attention to the city's history of opera music.

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