Bradley Campbell

Cyclocross racer BrittLee Bowman chose a double mastectomy when she was diagnosed with breast cancer at 34.

It's not fair that Christmas "becomes this embodiment where we as a people project all of this expectation and hope on this one day," says songwriter Kirby Brown. So he wrote a song about it.

Would you let someone you didn't know borrow your car? New car-sharing programs are letting people do just that. Companies like RelayRides.com let people in urban areas like San Francisco, Portland and Cambridge, Mass. rent out their own cars for an hourly fee.

We talk to one reporter who took car-sharing for a test drive: Casey Miner, at KALW 91.7FM in San Francisco and one of our partners in the Transportation Nation project.

We’ve heard the reports and told the stories of Japan, how it’s facing its worst crisis since World War II, about a death toll in the tens of thousands, the massive destruction of entire cities, and continuing threats of nuclear meltdown. Now, here’s more terrifying news: The threat of earthquakes hasn’t gone away — it has increased. Thomas Jordan is the Director of the Southern California Earthquake Center. And his work shows that Japan is under an increased threat for aftershocks. He appears in a new NOVA special "Japan's Killer Quake," which premiers tonight on PBS. Collum Macrae is one of the producers of the documentary.

More than 140 million people have been watching the NCAA men’s basketball tournament this year. And nearly everyone involved with March Madness is profiting handsomely from the games. That is, everyone but the players. "Frontline" correspondent Lowell Bergman investigates NCAA labor issues in his new documentary, “Money and March Madness,” which airs on PBS tonight. Sonny Vaccaro believes that student athletes should benefit; he signed Michael Jordan to his first shoe contract.

El Salvador is the last stop on President Obama's three-nation tour of Latin America. Mr. Obama's stops in Brazil and Chile were largely overshadowed by events in Libya, but his reasons for visiting the strategically important South American nations were clear: with their galloping economies, Brazil and Chile are emerging as power players in the region and in the world. However, his reasons for visiting El Salvador are less obvious.

It's national bracket day, and as usual, college basketball fans are busy choosing which of the now 68 teams will make it to the Final Four. It's estimated the NCAA Men's Basketball Tournament will lead to 8.4 million hours of lost worker productivity this season. We talk with Tobias Moskowitz and Jon Wertheim, co-authors of the book, "Corecasting: The Hidden Influences Behind How Sports Are Played and Games Are Won." Moskowitz and Wertheim give their tips for how you should — and shouldn't — go about filling in your brackets.

The SXSW music festival turns 25-years-old this year. As has become a ritual in March, thousands of musicians and entertainment industry people from around the globe will play each night on 80 different stages throughout downtown Austin. Any one going is excited for soaking in the warm weather and bbq, but picking the best bands to watch is overwhelming. So we tracked down three music writers from across the nation, including one from (SXSW founders) The Austin Chronicle. They each gave us their own must-see bands for 2011: