Greg Myre

The Nobel Peace Prize Committee acknowledges that its choices are based on both achievements and aspirations. Sometimes those aspirations are realized, and sometimes not.

Peres served as prime minister three times, launched the country's nuclear program and won the Nobel Peace Prize. But his grandest goal, an Israel at peace with its Arab neighbors, eluded him.

Colombia's peace deal brings to a close rebel insurgencies in Latin America that began with Fidel Castro in the 1950s. In all those years, only two guerrilla groups ever toppled governments.

The U.S. went to war after Sept. 11 and has now been fighting for 15 years, the longest unbroken period in its history. Despite disappointing results, there's broad consensus it should continue.

As in London four years ago, American women are taking home more medals than their male counterparts. It's a trend that's likely to continue.

After several close games in the tournament, including one with Serbia, the Americans trounced the Serbs, 96-66, for the gold medal on Sunday.

Paul Chelimo ran the race of his life in the 5,000 meters and finished second. Then he was disqualified. Then he was reinstated. It was a strange race for a runner with an unusual back story.

Here are the athletes who struck an emotional chord, some for better, some for worse, at the Rio Games.

In an action-packed night on the track, Allyson Felix anchored a winning U.S. relay team, giving her six career golds, the most by any woman in track at the Olympics.

The Americans routed Spain, 101-72, Saturday as they defeated their opponents by an average margin of close to 40 points. They haven't lost an Olympic game since 1992.

Bolt anchored the 4x100 relay team to victory, giving him golds in three sprints in Rio, just as he did in the previous two Olympics. His nine golds ties the all-time record for track and field.

The Paralympics Committee says up to 10 countries may not be able to send athletes as planned. The committee is working with the Brazilian government to secure more money before the games next month.

Eaton, 28, became one of the few men in Olympic history to repeat as a decathlon champion. His victory came just days after his wife, Brianne, won the bronze in the women's heptathlon.

We should have been prepared for this Ryan Lochte drama. After all, he starred in a reality show three years ago called What Would Ryan Do?

Germany humiliated Brazil in the semifinals of the World Cup in 2014 by the absurd score of 7-1. Now Brazil will have a shot at redemption in the Olympic soccer final on Saturday.

America's Kerri Walsh Jennings lost her first beach volleyball match in four Olympics, as she and her partner fell to Brazil. Simone Biles wrapped up her sparkling Rio games with a fourth gold.

Brothers Gary and Paul O'Donovan took silver in rowing, Ireland's first ever medal in the sport. But they set a new Olympic standard for the best post-competition interview.

The Jamaican seized the title of "world's fastest man" for an unprecedented third time. In the men's 400, South African Wayde van Niekerk was not only a surprise winner — he set a world record.

Lochte's taxi was stopped by robbers who put a cocked gun to his head. "I was like 'whatever.' He took our money, he took my wallet," the swimmer told NBC. No one was hurt.

There are 205 countries competing in Rio, many for decades, and most of them can't match Phelps' total of 23 golds.