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Scientists have developed vaccines that protect against the deadly Ebola and Marburg viruses. They hope to test the vaccines -- successful in experiments with monkeys -- on humans in two to three years. The viruses are at the top of experts' list of bioterrorism threats.

A rare mushroom that grows in the old-growth forests of the Pacific Northwest may offer protection from smallpox -- an infectious disease that security experts feel may be a biological weapon of choice for terrorists who wish to attack America.

Business and labor groups are weighing in on proposed immigration legislation. The Chamber of Commerce and the AFL-CIO are both against certain provisions in the bill. But agri-business interests are backing the proposals.

One brigade slated for deployment to Iraq this summer will instead be staying in Germany, courtesy of the Pentagon's reassessment of troop levels. Will political progress in Baghdad allow the Defense Department to lower U.S. force levels in the weeks ahead?

India's educated young people are demanding suitable jobs, but they don't exist. Plus, wages are declining. This came to a head with riots in some of the poorest districts of northern India.

Alex Segura's mystery-thriller features a queer Cuban-American artist fighting against the patriarchy and dodging bullets in the desperate, male-dominated world of comics.

"Within seconds we realized, oh my God, a pack of killer whales is attacking a blue whale," researcher John Totterdell from the Cetacean Research Centre in Australia, told NPR.

Billions of people rely on glaciers for drinking water, hydropower and irrigation. A raft of new research suggests there is less ice left than previously thought.

Fresh Air's TV critic previews the new series Breaking Bad, about a cancer-stricken chemistry teacher who decides that cooking crystal meth is the best way to support his family after he's gone. The show premieres on the AMC cable channel on Jan. 20.

March Madness is hitting a fever pitch, as only the last "Sweet 16" teams are left standing on the men's and women's brackets.