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Many health experts say we should eat less salt, but that's not easy. Salt is added to almost everything that we cook or bake. Are we born with a taste for that much salt, or do we just like what we've always eaten? Scientists say it's some of both.

"The Maya never, ever, said anything about the world ending at any time — much less this year," says an archaeologist who helped translate the ancient culture's hieroglyphs.

A dentist in Sweden is offering $45 gift cards to give to 20-somethings who stop coming in for cleanings once they live on their own.

As the outlines of a deal have taken shape, both sides have been trying to show supporters that they're hanging tough. So today's vote on a GOP plan could be a bit of political theater that helps push the federal government over that so-called cliff and an important step toward compromise.

The mass shooting in Newtown, Conn., has prompted a variety of responses. Along with reports about soaring sales of backpacks designed to protect against bullets, there's word of volunteers — such as one Marine in California — who are standing watch outside schools.

Many modern day liqueurs, like Campari and Pimm's, started off as 19th century medicinal tonics made to cure an array of ailments, including malaria. So if you're sipping a French aperitif or an absinth cocktail this holiday season, chances are you're also imbibing a bit of malaria history.

An international criminal court has found former Rwandan minister Augustin Ngirabatware guilty of genocide and other crimes, sentencing him to 35 years in prison for his role in the Hutu-led government's murder of ethnic Tutsis on an epic scale. The trial is the last stemming from events 18 years ago.

Senior analyst for the Violence Policy Center Tom Diaz says one of the weapons found at the site of the Newtown, Conn., shooting was a variant of a type of gun developed for troops in Vietnam.

The latest Pew poll shows a slight upward shift in the percentage of Americans who say it's more important to control gun ownership than it is to protect the right to own guns. But deeply felt feelings appear to be limiting the change.

A number of conservative groups are vowing consequences for Republicans who line up behind House Speaker John Boehner and his plan to avoid the "fiscal cliff." Fiscal conservatives say that how GOP members vote now could set the stage for the 2014 primary season.