Talk of the Nation

Agile quarterbacks like Michael Vick, Tim Tebow and Robert Griffin III are gaining ground on traditional players who sit in the pocket, timing the perfect pass. NPR correspondent Mike Pesca and Super Bowl-winning QB Joe Theismann talk about how quarterbacks and the game of football have changed.

A pair of new studies find that taking aspirin daily may significantly reduce the risk of many cancers and prevent tumors from spreading. Many experts view the findings as promising, but public health officials warn that the risks may still outweigh the benefits.

When actor Wendell Pierce returned to his native New Orleans to help rebuild after Hurricane Katrina, he noticed a lack of grocery stores selling fresh food. Now, Pierce is opening Sterling Farms — a chain of stores in the Ninth Ward that will sell food at affordable prices for low-income shoppers.

NPR's Neal Conan reads from listener comments on previous show topics including the controversy over homeless hotspots, why some songs get stuck in our heads, and sober advice for former Illinois Governor Blagojevich as he begins a long sentence in federal prison.