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Bitcoin has been tied to the dark side of the Internet, where it's been linked to drug trafficking. But New York's financial regulators say they want to foster innovation and are looking to legitimize the virtual currency by licensing it.

For regular drinkers, the New Year's resolution tradition may involve what's known as a dry January: giving up booze for a month. But could such a short-term breakup with alcohol really impart any measurable health benefits? A small but intriguing study suggests yes.

Much has been made of the need for young, healthy people to sign up if the Affordable Care Act is going to work. But it may be that the key word here is not young, but healthy. Insurance companies get paid more for older people, regardless of their health.

Ever since there have been puddles of water, human beings have gazed at their reflections. Our need to primp and preen, whether we lived in the Bronze Age or the Space Age, is on display in a new exhibition at the Metropolitan Museum in New York.

After four decades on Capitol Hill, the California Democrat plans to step down at the end of the year. He leaves a deep legacy in health and environmental law, including clean-air rules and tobacco restrictions.

Lanny and Tracy Barnes competed on the U.S. Olympic team in 2006, and Lanny competed in 2010. This year, Tracy gave her spot on the team to Lanny, who was ill during the selection races and just missed qualifying. "The Olympics are about more than just competing," Tracy says.

A potentially landmark lawsuit goes to trial Monday in California. At issue: whether job protections for public school teachers undermine a student's constitutional right to an adequate education. The students and parents who filed the lawsuit see it as a potential model for challenging teacher protection laws in other states. Unions and state officials say the lawsuit demonizes teachers and has no merit.

In The Empire of Necessity, historian Greg Grandin tells the story of a slave revolt at sea. The 1805 event inspired Herman Melville's Benito Cereno, and Grandin's account of the human horror is a work of power and precision.

Unlike airlines, hospitals don't offer perks or first class upgrades to people who frequently visit the emergency room. In fact, patients like these often get worse customer service, like the apocryphal boy who cried, "Wolf!"

You can print out almost anything with a 3-D printer, from weapons and prosthetic hands to Yoda figurines. Sure, you can buy a 3-D printer. But what if you wanted to make one yourself? It's easier than you might think.