And let's turn from political to science. Researchers discovered what looks to be the elusive Higgs boson. It's a subatomic particle they've spent nearly 50 years searching for. So, this was special vindication for their efforts, and special vindication for one of the scientists who's been searching for the particle - a man named Gordy Kane. Kane won $100 in a bet with Stephen Hawking, arguably the world's smartest person alive today. Hawking admitted defeat on the BBC.
And let's talk about the presidential campaign with Mara Liasson, NPR's national political correspondent. Mara, good morning.
MARA LIASSON, BYLINE: Good morning, David.
GREENE: So, we just heard in Cheryl's piece that the NAACP is meeting. They're going to hear from Mitt Romney. They're going to hear from Vice President Joe Biden. They are not expected to hear from President Obama. What do you make of him sitting this one out?
The men's Wimbledon final has just ended, and Swiss star Roger Federer has now tied Pete Sampras' all-time record of seven Wimbledon victories in the modern era. It was a dramatic win for Federer, but also a dramatic loss for Britain's Andy Murray, who had a whole country watching today. He was the first British man to even reach the Wimbledon finals in 74 years. Like millions of people all over Britain, NPR's Philip Reeves tuned in. And, Phil, are you still breathless after that match?
SISTER WINONA CARR: (Singing) Life is a ball game being played each day. Life is a ball game...
DAVID GREENE, HOST:
That big stadium organ in that tune seems so appropriate this week because the Major League Baseball is heading into its All-Star break. And WEEKEND EDITION star, Mike Pesca joins us now to talk sports.
MIKE PESCA, BYLINE: Thanks. I was named in fan balloting. I don't really deserve it.
This is WEEKEND EDITION from NPR News. Good morning, I'm David Greene.
It's been pretty warm here on the East Coast the last few days. No, check that - it has been downright scorching. Temperatures have climbed so high many cities warned residents that they should avoid strenuous activity and stay hydrated.
From member station WHYY, Elizabeth Fiedler reports on how some are beating the heat in Philadelphia.
This is WEEKEND EDITION from NPR News. I'm David Greene.
Yesterday, for the first time since the fall of Moammar Gadhafi, Libyans cast votes to elect their government. These were parliamentary elections. And while Libyans celebrated the landmark event in the street, it is clear the transition to democracy is running into trouble.
For more, we're joined by Fred Wehrey in the BBC Studios in London. He's a senior associate at the Carnegie Endowment for International Peace and he was in Libya during the run-up to the elections.
Some people call it the art of diplomacy. Well, it sure is an art with a lot of rules. When an American president is meeting with a foreign leader, it is so important to respect the country's customs, use proper greetings, serve the right food, above all, avoid mistakes that could make things awkward. You might remember this scene from the TV drama, "The West Wing.
The NAACP, the nation's oldest civil rights organization, holds its annual convention in Houston this week. As in any election season, the group is focused on voting rights and voter turnout. But this year, there's another issue that's front of mind: the dramatically high rate of unemployment rate among African-Americans.
Presidential candidate Mitt Romney will address the NAACP convention on Wednesday, and Vice President Joe Biden is scheduled to speak the following day. NAACP members are ready to hear their plans.
An Afghan girl stands among garbage near her home in Kabul on May 17. Some 5 million people live in Kabul, but the Afghan capital is woefully short of the infrastructure needed to support the large population.