Father Tomasz Trafny of the Vatican's Pontifical Council for Culture and Dr. Robin Smith, the CEO of NeoStem, last year announced a partnership to explore adult stem cell research.

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itoggle caption Jennifer Graylock/AP

More people end up in the emergency room from overdosing on Vicodin, pictured here, and other prescription painkillers, than heroin or cocaine, a government report says.

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itoggle caption Amayzun/Flickr

A customer studies a display of milk and dairy products at Bryan's Grocery in San Francisco in March. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Officer Tom Merenda talks to John Fager, one of the dozens of residents living in an assisted-living facility in Cannon Point. Kenny Malone for NPR hide caption

itoggle caption Kenny Malone for NPR