Weekend Edition-Saturday

Siegfried is a Norse hero, and one of the most demanding roles in all of opera. He slays dragons and has to sing about it — in Gotterdammerung, The Twilight of the Gods, the last opera in Wagner's Ring Cycle.

The UN Security Council failed to pass a draft resolution aimed at pressuring Syria's government to stop its violent crackdown on dissidents on Saturday morning. NPR's Michele Keleman and Kelly McEvers join guest host David Greene to update the vote and the fresh breakout of violence Saturday morning.

In Moscow on Saturday, tens of thousands of protesters braved the sub-zero temperatures to gather in the city center. They were demonstrating against Vladimir Putin's planned return to the presidency next month. Guest host David Greene has more.

Transcript

DAVID GREENE, HOST:

Imagine a place on earth where there's been no light, no wind for millions of years. Lake Vostok is one such place. The world's third largest lake, in terms of amount of water, has long been hidden, buried beneath two miles of ice until, perhaps, this coming week. Russian researchers are about to break through that ice.

I would like to rise up today in defense of Diet Coke. All diet sodas, in fact. But Diet Coke happens to be my favorite.

I like the stuff.

Cracking open a can of it, or pouring some over ice, helps me survive a long work day.

This love of Diet Coke is one reason my re-entry into the United States has been a little rocky. When I moved back recently after a reporting assignment in Russia, nobody warned me that war had been declared on Diet Coke.

The artillery was fired by Men's Health magazine.

In the last decade, population growth in Western swing states outpaced the national average, according to David Damore, a professor of political science at the University of Nevada, Las Vegas. With the Nevada Republican caucus underway, guest host David Greene talks with Damore about the electoral shift and the issues potential voters in the region view as priorities.

Ruthie Foster is from a small town in central Texas — but there's nothing small about the way she sings on her new album, Let It Burn. Zigzagging between blues, soul, gospel and rock, the album features solid originals and surprising covers, along with several stirring collaborations with The Blind Boys of Alabama.

The women's finals in the Australian Open are already over. In baseball, power-hitter Prince Fielder has returned to his childhood team, the Detroit Tigers, for which his father played. Host Scott Simon talks sports with Howard Bryant of ESPN the Magazine and ESPN.com.

A niche industry of tour companies is taking people into wolves' habitat at Yellowstone National Park. Montana Public Radio's Dan Boyce went on an expedition with a man who recognizes the problems wolves bring to the landscape even as he makes his living off of them.