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More than 150 years ago, prospectors moved to California hoping to strike it rich. Now, companies are reopening hard rock mines that have been shut down for decades, but past experiences with environmental damage have made some communities leery of gold diggers.

Increasingly, China's surveillance state has extended to include Chinese individuals spying on one another. Former journalist Qi Hong has helped ordinary citizens and government officials alike detect bugs and hidden cameras planted by others. In one year, his bug hunt turned up more than 300 devices for a hundred friends.

Host Michel Martin looks at the Pentagon's new policy to open combat positions to women with Representative Tammy Duckworth. The Illinois Democrat lost both her legs as a helicopter pilot in Iraq, and currently serves as a Lieutenant Colonel in the Illinois Army National Guard.

Aficionados of cheeses made from the milk of mountain-grazing cows swear they really do taste better than those from cattle pastured on plains. Now, scientists are teasing out some of these subtle differences – in hopes of proving the mountain cheese tradition is worth preserving.

From tablets and iPhones to Twitter and Instagram, technology is changing the way children interact with the world. Host Michel Martin talks with a roundtable of parents about encouraging digital exploration, while keeping kids safe.

The history of the state of Texas is expansive and colorful. It's boundaries have fluctuated. It's flown six different flags. It's background is steeped…

The three-term former mayor, who led the city out of its financial crisis in the late '70s, was 88. Known for asking "hey, how'm I doing?" he was sometimes too candid for his own political good. But when the city needed a lift, he was everywhere. He thought it needed a big personality — his.

For years, Super Bowl ads have gone viral after they've aired. But these days brands like Doritos and Volkswagen are turning to social media to crowdsource ad creation — and to boost the buzz long before the big Sunday kickoff.

Of all the individuals in President Obama's first-term Cabinet, Energy Secretary Steven Chu was arguably the least likely to be found in official Washington. And now that the Nobel Prize-winning physicist is leaving government, there are a few reasons that understanding his legacy might take some time.

San Francisco 49ers quarterback Alex Smith will be on the sidelines of the Super Bowl this weekend, after suffering a concussion midway through the season. Now he's counseling teammate Colin Kaepernick, the quarterback who replaced him. "The good ones stay ready," he says.