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In the face of abuse concerns, Medicare covered more prescriptions for potent controlled substances in 2012 than in 2011. Top prescribers often have faced disciplinary action or criminal charges.

Around the world, patients acquire new infections simply from spending time in a hospital. One way to fight back: replacing hospital bed rails with copper, a natural infection-killer.

Audie Cornish speaks to journalist Kevin Roose about the use of the term "disruption" in the tech industry.

Following the lead of two other Republican governors, Tennessee's Gov. Bill Haslam is moving to expand Medicaid in his state, using federal funds from the Affordable Care Act.

To find helpful patterns in personal microbe populations, scientists also need to gather a long list of information about the people who serve as homes for the microscopic critters.

"We run the risk of going from hysteria to a sense of indifference," says the now-recovered physician. "And I think that is even more dangerous than our fear."

Tensions between police and communities of color are grabbing the nation's attention — all the way up to the White House. The Obama administration has announced a new task force to tackle the problem.

The country's inflation rate is running around 40 percent this year, according to private economists. As a hedge, Argentines are always looking for ways to get their hands on U.S. dollars.

Thousands of people are imprisoned for decades, if not life, because of tough drug sentences. Now judges, lawyers and advocates ask whether it's time to dial back those penalties.

Although egg freezing is the perk of the moment at some high-profile companies, the benefit isn't often available, even for women with serious illnesses that could affect their fertility.