The number two Republican in the Senate is the latest GOP incumbent to receive a challenge from the right. In a surprise move, Rep. Steve Stockman, a conservative firebrand with a knack for stirring controversy, entered the 2014 Senate race Monday just before the state's filing deadline.

The eastern U.S. is getting a second dose of winter Tuesday, as forecasters call for 2-7 inches of snow in areas from southwest Virginia to the coast of New England.

After Angelina Jolie announced she has a genetic variant that raises her risk of breast cancer, many women asked their doctors for the test. Insurers will pay for tests only if there's a clear indication that it would help shape medical care. That's often not the case.

Organic milk contains about 62 percent more omega-3s than milk from cows on conventional dairy farms, a new U.S.-based study finds. To get the full boost of these healthful fatty acids, you'll need to drink whole milk.

Mary Barra will become the new leader of General Motors in January, the company announced Tuesday. The company veteran's tenure as CEO will begin after current leader Dan Akerson retires on Jan. 15.

An NPR poll finds that most elementary school kids have physical education classes just one or two days a week. In response, parents and educators are getting kids to squeeze in walks, jogs and jumping jacks before, after and even during school.

American bank regulators unveiled the final version of the so-called Volcker Rule, which prohibits banks from trading stocks, bonds and derivatives for their own accounts. For more, Steve Inskeep speaks to NPR's Jim Zarroli.

Reed Holway served in Iraq, where he developed PTSD. His symptoms worsened back in the U.S. He got in trouble and ultimately received a bad-conduct discharge. Now Holway is stuck: He can't get medical care from the VA for the disorder that he says caused him to get kicked out of the Army in the first place.

A recent survey by the PEN American Center, a nonprofit writers group, suggests that recent revelations about government surveillance are affecting creative expression. David Greene talks about the survey with David Simon, the writer and producer who created the HBO series The Wire, among other hits, and Azar Nafisi, author of Reading Lolita in Tehran.

Federal regulators on Tuesday unveil and vote on a final version of the so-called Volcker Rule. It's part of the Dodd-Frank regulatory overhaul and prohibits banks from trading stocks, bonds and derivatives for their own accounts. Defining what the rule covers has taken years of work.

A new leak from former NSA contractor Edward Snowden reveals that intelligence agencies spied on popular online fantasy games, like Second Life and World of Warcraft.

Eighteen current and former Los Angeles sheriff's deputies are facing federal charges, accused of civil rights violations and obstruction of justice. The indictments are part of an ongoing FBI probe into allegations of widespread abuse against inmates at county jails.

The U.S. Department of Treasury has gotten out of the auto business. The government completed its sales of stock in General Motors on Monday.