NPR Staff

Maybe you've noticed a dish that keeps popping up in more restaurants across the U.S.

Peru is one of the countries that lays claim to ceviche, which is made of raw fish and chilies, cured in lime juice.

So how do you know you're tasting a perfect ceviche?

"In the first bite, you want to find a strong citrus flavor balanced with the fish, and a little bit spicy, but a fresh spicy given by a fresh chili," says chef Gaston Acurio.

Nearly a thousand of you heeded our call on All Tech Considered to submit a voice sample. The idea: Let a computer algorithm decide if you have a voice for radio.

Now, we've got the results.

Actor Wilbur Fitzgerald rated highly (surprise, surprise):

But most of you who responded are not actors. And it turns out, you don't need professional training to impress man or machine.

Around this time 70 years ago, following the liberation of Nazi concentration camps in Europe, the world was coming to grips with the scale of the holocaust, and how to deal with crimes so horrendous, they're almost incomprehensible.

That process is still ongoing.

Right now in Germany, a 93-year-old former Nazi who served at Auschwitz is on trial. Holocaust survivor Eva Kor flew to Germany to testify about her experience in the camp.

The self-declared Islamic State gained a real grip on Iraq and Syria this week, capturing the cities of Ramadi and parts of Mosul in Iraq, and the ancient town Palmyra, Syria.

Most recently, ISIS has claimed credit for a suicide bomb attack inside Saudi Arabia on a Shiite mosque during Friday prayers. That attack killed at least 19 and could represent a significant escalation of the extremist group's operations in the kingdom.

Reddit, billed by its founders as "the front page of the Internet," has long been known as a place of unbridled free speech on the Web where users, known as Redditors, post text, pictures and videos.

But that unbridled free speech sometimes spills over into harassment, sexism and racism. Over the past couple of years, Reddit has been at the center of several controversies concerning harassment, including the release of hundreds of private celebrity photos. It's also become infamous for its unbridled vitriol.

The challenge of strategizing the best route to work against the herd of other drivers can be as routine as the daily commute itself. A number of apps are out there to help shortcut one's route and evade traffic jams. But which ones are the most accurate? And how?

The All Tech Considered team put a few competing traffic apps to the test in Robert Siegel's usual short commute from Arlington, Va., to NPR's D.C. headquarters.

The Test Drive

This ride is about 15 minutes in no traffic. But it's now morning rush hour.

After the Republican presidential candidates finish their first debate this summer, many will head to Atlanta for a summit hosted by Erick Erickson, conservative activist and editor-in-chief of RedState.com.

This year, Erickson's RedState Gathering is scheduled for the same weekend as the Iowa Straw Poll.

Jeb Bush has already indicated he will go to the RedState Gathering rather than Iowa. Scott Walker, Carly Fiorina, Bobby Jindal, Marco Rubio and Rick Perry are also going. Most will try to attend both events, Erickson says.

Before Ferguson, Baltimore, Tamir Rice or Eric Garner, there was 13-year-old Nicholas Heyward Jr.

In 1994, he was playing in the stairwell of the Gowanus Housing Project, where he lived in Brooklyn, when a police officer shot and killed him.

"He was an amazing kid and I don't just say that because he was my son," Nicholas Heyward Sr. says during a recent visit to StoryCorps.

Think local Nebraska food, and Omaha's famous steaks may come to mind. The Great Plains are indeed an agricultural powerhouse when it comes to commodities like feed corn, soybeans, beef and pork.

But as food journalist Summer Miller tells Meghna Chakrabarti of NPR's Here & Now, there's much more on offer these days in Nebraska, as well as in its Great Plains neighbors Iowa and South Dakota.

Imagine you're on the highway. You glance into the cab of the 18-wheeler next to you — and there's no driver. That day might be getting closer.

Automaker Daimler unveiled a truck last week that drives itself, called the Freightliner Inspiration. But the truck is not yet entirely autonomous.

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