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After the shock of a gunman killing 20 small children and six adults at an elementary school in Connecticut, districts are increasing police patrols, locking schools' doors and taking other steps.

Secretions from a brown frog's skin contain chemicals that might be useful in fighting bacteria. Russian researchers are cataloging compounds in the slimy goo. Although the odds against them are long, the researchers hope their work will aid the search for new drugs.

Ayurveda is a form of traditional medicine that's thousands of years old. But some ayurvedic remedies have harmful heavy metal additives, including lead. And those remedies are finding their way to the U.S., as two recent cases of childhood lead poisoning in New York attest.

The ability to customize products began with computers more than a decade ago. Now, you can create your own T-shirts, jeans, custom-blend cosmetics and candy. Even luxury brands like Burberry, Prada and Louis Vuitton now let customers design their own looks.

A large niacin-plus-simvistatin study by the drug maker Merck may have far-reaching implications, since millions of people take niacin every day to prevent heart attacks and strokes. One doctor says "phones will ring off the hook in cardiology practices throughout America" because of the news.

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.

SANTA FE, N.M. (AP) — New Mexico Gov. Susana Martinez is calling for a statewide moment of silence for the victims of last week's school shooting in…

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.

The mayor of Newark, N.J., ended whatever suspense existed by saying he will "explore" a run for the U.S. Senate, not governor. He thereby averts a clash with the very popular Gov. Chris Christie.

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.