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The government released a new policy on how to handle legitimate biological research that could be misused in the wrong hands. The move comes as controversy still swirls around recent experiments with lab-altered bird flu.

His youngest wife has given investigators the most detailed account yet of where the al-Qaida leader was in the years between the 2001 terrorist attacks and his death in May 2011, The New York Times reports.

In The Age of Insight: The Quest to Understand the Unconscious in Art, Mind and Brain, Nobel Prize-winning neuroscientist Eric Kandel writes of turn-of-the-century Vienna, where artists mingled with writers, scientists and physicians, and explains how the brain perceives a work of art.

In the wake of a deadly soccer riot in Egypt's Port Said earlier this year, 75 people face murder charges, while the local team has been banned and the stadium shuttered. Now, officials and residents say the tragedy has destroyed their city's reputation and left them in financial trouble.

The growing U.S. Hispanic community has created another boom — in Hispanic media. In recent months, several major media players have announced plans to compete for that audience with a new TV network and several new cable channels — and they're not all in Spanish.

Polar bears live on sea ice but that habitat is slowly disintegrating. Juliet Eilperin of The Washington Post, and Dr. Jeffrey Bonner, President and CEO of the St. Louis Zoo, talk to David Greene about a push to preserve polar bears. The idea is to keep a number of them in captivity to preserve the gene pool .

Mobile games like Angry Birds and Draw Something have gained huge popularity partly because of one asset: simplicity. As a result, the traditional video game industry is taking note. But not all of them are following the same route.

In Wisconsin, Maryland and the District of Columbia, polls show Mitt Romney with a wide lead. Yet Rick Santorum continues to campaign as relentlessly as ever.

The killing of Trayvon Martin is just one in a long series of race-related acts of violence in Florida, argues Pulitzer-prize winning journalist Isabel Wilkerson. Wilkerson, author of The Warmth of Other Suns says Martin's killing, historically speaking, was not an isolated incident.

During a debate over the Violence Against Women Act last week, the Wisconsin Democrat told her own history of surviving sexual assault and violence. Rep. Moore speaks with host Michel Martin about her story and why she thinks the Violence Against Women Act deserves bipartisan support. (Advisory: This segment may not be suitable for all audiences.)