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It had been more than 40 years since the Calbuco volcano erupted. It's blown twice this week — generating striking images and concerns over the effects of both the lava and a mammoth cloud of ash.

Are you more an apple or a pear? If it's the former, you've got company. Americans' waistlines are growing, even though obesity rates have plateaued. And more belly fat increases health risks.

Some states have started requiring hospitals to screen their patients for the drug-resistant bacteria known as MRSA. But a study that tested different approaches to reducing infections found that screening first wasn't the most effective approach.

The president is expected to confirm today that he has asked Vice President Biden to head up an administration-wide effort to find ways to curb gun violence.

A study finds those who used emergency contraception were about evenly divided between in their reasons. About half said it was because another contraceptive method had failed and half cited unprotected sex.

The nation's population is now projected to become "majority-minority" in 2043, the Census Bureau says. Meanwhile, the average age will continue to rise as Americans live longer, birth rates continue to decline and immigration slows.

Georgia is well known for its agricultural products, such as peaches, peanuts and chickens. Now, in the tiny town of Camilla, one farm is turning out an unusual item that's in big demand in Europe's high-fashion industry: alligators.

The latest violence began following an argument between a Muslim goldsmith and his Buddhist customers in a central city. Ethnic violence in the former Burma comes as the government introduces democratic reforms after decades of military rule.

Sen. Harry Reid said the envelope was sent to the office of Sen. Roger Wicker, a Republican from Mississippi. The envelope was found at a processing plant away from the Capitol.

On Monday, FBI investigators said they had not found any trace of ricin in a search of Paul Kevin Curtis' home.