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Lesions on the teeth of crack and methamphetamine addicts have a lot in common with those on the teeth of people addicted to soda, a dental researcher writes in a case study. But even people who wouldn't consider themselves "soda addicts" are at risk of dental erosion, he says.

The nonpartisan Congressional Budget Office has a new study of tax breaks in the tax code, and sure enough most of the biggest ones benefit the wealthiest taxpayers.

What an employer finds when researching an applicant online can make or break a job opportunity. Pete Kistler says he found this out the hard way. Since online reputation-management services were too pricey for his college budget, he started his own.

It isn't clear yet whether U.S. regulators will approve the takeover of the iconic American company by China's Shuanghui International. There are concerns that Shuanghui could ratchet up production to feed the growing demand for meat in China.

As part of his investing adventure, NPR's Uri Berliner tries his hand at bulk buying. The idea: Stock up on goods now that you know you'll need later. It's a hedge against inflation. But figuring out what to buy and how much isn't so easy.

In three-quarters of the states where the federal government is running the marketplaces, at least one new insurer has applied to enter the individual market.

Degree-granting institutions are responding to austere budgets by catapulting themselves into the world of online education. But some professors point to low online completion rates as evidence that these "massive open online courses" do a disservice to students.

The Standard Heights neighborhood sits next to the nation's second-largest gasoline refinery. Recently, residents learned a new truth about the plumes of exhaust they see every day: Exxon Mobil's aging refinery and petrochemical facilities — like many others — are pumping out far more pollution than the law allows.

Trips to war zones have become a signature for Sen. John McCain. While some senators use poster board displays on the Senate floor to make their points, McCain goes them one better and by posing in dangerous places alongside wary men with semiautomatic rifles.

Some news organizations are saying 'thanks, but no thanks' to an off-the-record meeting with U.S. Attorney General Eric Holder. He offered to discuss guidelines involving the Justice Department's investigation of security leaks to the press. Host Michel Martin checks in with the Barbershop guys.