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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.

The world is at greater risk than ever from pandemics and biological weapons, health officials said Thursday. In response, the U.S. government is spearheading a global effort to build an early warning system for infectious diseases, drug-resistant microbes and possible bioterror agents.

President Obama used to say that he wanted to rely more on career diplomats to serve as U.S. ambassadors. But he's been opting for political appointees who are big donors with limited international experience.

Talks in Vienna about Iran's nuclear program kick off what could be a year of negotiations. Negotiators are seeking a deal to follow the temporary agreement now limiting Iran's nuclear program.

One year ago, Lauryn Williams had never tried bobsled racing at all; she was only elevated to the elite U.S. women's team 11 days ago. Wednesday, she made Olympic history.

At the Vancouver games, Canada won the most gold medals. Now fans are cheering on their teams in Russia: A moving, yelling, living, breathing mass of Canadian pride.

One of the most famous childhood stars of all times, Shirley Temple Black has died. Remembered for her curls and acting talent, she became the face of hope during the Great Depression.

The first satellite ever developed by high school students to make it to space is believed to be orbiting Earth after getting a ride aboard a U.S. military rocket Tuesday night from Wallops Island, Va. Fittingly, perhaps, you can send it a text message.

Jewish foodies say the flavors of Hanukkah and Thanksgiving are a culinary match made in heaven. And this Thanksgivukkah feast is especially sweet because it may not happen again for 80,000 years.

The change makes it much harder for Republicans to filibuster many of President Obama's nominees.