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At about 5:30 p.m. on Monday, two washing machine-sized space probes crashed into the surface of the moon. It was all by design and marked the end of NASA's GRAIL mission. The two probes had been orbiting the moon for almost a year, and they've sent back data that have given scientists an unprecedented look inside our nearest solar system neighbor.

As President Obama spoke to mourning families in Newtown, Conn., on Sunday night, he clearly seemed to suggest a need for tougher gun laws.

"Are we really prepared to say that we're powerless in the face of such carnage? That the politics are too hard?" he said.

For Congress, the politics have been too hard.

The combination of a powerful gun owners' lobby in the form of the National Rifle Association and a loss of public support for gun control has stymied efforts in recent years to tighten gun laws.

Inside a modest storefront in Loxley, Ala., 18-year-old Maria Lola Melisio points out the Mexican spices and other products for sale in her mother's market.

"There are the leaves where you make your tamales — you roll them up in that," she says.

Melisio has long dark curls and is wearing a houndstooth scarf in support of the Alabama Crimson Tide. When she was 7 years old, she entered the U.S. illegally from Mexico with her mother, and still has a scar on her back from crawling under the border fence. It's a story she's kept secret until now.

These days, just about everyone seems to be looking for more natural alternatives to what they eat and drink. So it's easy to see the appeal of traditional medicine. But as two recent cases from New York City highlight, just because a remedy is ancient or holistic doesn't necessarily mean it's safe.