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Tuberculosis is one of the oldest diseases in human history. Signs of the bacteria have even been seen in Egyptian mummies. Now scientists find evidence that TB is much more ancient than we thought. The bacteria may have started infecting people more than 70,000 years ago, long before farming began.

No traditional Danish meal is complete without a piece of pork tucked in somewhere — which helps explain the outrage that followed after some Danish day cares dropped pork to accommodate Muslims. The battle over menus is the latest sign of Denmark's struggle with multiculturalism.

Ai Weiwei, the world-renowned Chinese artist and dissident, has created a deeply autobiographical work for the Venice Biennale exhibit. It is a series of dioramas about his life as a political prisoner, when he was jailed for criticizing the corruption and shoddy construction that caused the deaths of 5,000 children when schools collapsed in the 2008 Sichuan earthquake.

The Volcker rule, a key part of the 2010 Dodd-Frank financial law, prevents banks from using government-insured money to make speculative bets.

The professional gamer just got a visa normally reserved for baseball players and other athletes to compete in the U.S., and more international players could follow. "Gaming is their full-time job," says Marcus Graham, a senior manager at the gaming site Twitch.

Insurance enrollment will be a key yardstick for assessing whether the Affordable Care Act is working. Almost as important as the total number of people who get coverage is whether a significant percentage of them are healthy.

The star of Italy's Euro 2012 team is the Sicilian-born son of Ghanaian immigrants, raised by an adoptive, white Italian family. Mario Balotelli has been subjected to racism on and off the field. Now, his success is prompting a rethink in a country that's notorious for its hostility to immigrants.

Nik Wallenda is the first person to walk directly over the falls. Thousands gathered to watch him inch along a tightrope Friday night. Though the wire was dripping from the mist, Wallenda accomplished a dream he'd had since childhood.

Debt-burdened Greeks go to the polls Sunday to choose between an establishment party, and continuing harsh austerity measures, or a leftist party that vows to replace the current bailout deal. Regardless of which party wins, Greeks know they face years of hardship in a rapidly unraveling society.

African musicians have recorded a fund-raising song to help fight Ebola. They say it truly reflects what's happening in their homeland — unlike the Brit pop Ebola song "Do They Know It's Christmas?"