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The treatment would allow doctors to replace the genetic glitches in one human egg with healthy DNA from a donor egg. Ethicists are concerned because any changes to eggs or sperm could be passed on for generations to come.

The three scientists sharing the 2013 Nobel Prize for chemistry developed computerized tools for studying complex molecules, such as enzymes and the photosynthesis machinery. These techniques allow engineers to design drugs and new chemical reactions more quickly and cheaply.

The brewery that makes Dave is donating some of the proceeds to Guide Dogs for the Blind. But buyers who shell out the $2,000 are likely in it for more than the goodwill. There's a lot of hype around Dave.

Some say they like how the House speaker has stiffened his spine in his dealings with the White House and Senate Democrats. Others think he's boxed himself into a corner.

If Congress doesn't raise the debt ceiling soon, the U.S. government won't be able to pay its debts. Here's who won't get paid if the government defaults.

Across the country, leaders of local chambers of commerce are irate that Washington can't reach agreement on the budget. They worry debt default could wreck consumer confidence ahead of the holiday shopping season. Yet many on Main Street aren't yet reacting by putting much pressure on politicians.

There's a lot of uncertainly in the air as harvest season gets into full swing across the Midwest. But this is a time of year when farm families come together to focus on the big task at hand.

The Fisk Jubilee Singers are known for their near-perfect voices and performances of African-American spiritual songs. Now the choir's musical director is on the road, mentoring to young groups across the South. He's also hoping to preserve the songs too.

Some argue that workers should be able to move more freely in a global economy. But others push back, saying an influx of labor into the richest countries would devalue workers' worth and actually hurt more in the long run. A group of experts debates for Intelligence Squared U.S.

Republicans are framing their central question about the troubled Affordable Care Act website this way: Are White House officials clueless or are they liars? A Democratic lawmaker, meanwhile, accuses the GOP of holding a "monkey court."