Weekend Edition Saturday

Six years ago, the FBI took on a challenge: To review what it called cold-case killings from the civil rights era. The investigation into 112 cases from the 1950s and 1960s is winding down, and civil rights activists are weighing the FBI's efforts.

The review comes with word this week of the death of a man who'd been named, by a newspaper investigation, as a possible suspect in one notorious case.

The Case

If you're driving down the road someday and you come across a camper with a 50-foot periscope sticking up into the sky, you just might have crossed paths with Ira Leifer. His quirky vehicle is on a serious mission. It's sniffing the air for methane, a gas that contributes to global warming.

Leifer is an atmospheric scientist at the University of California, Santa Barbara. But you'll more often find him off campus, in a garage, next to a string of auto body shops near the airport.

For years, reports have suggested that Afghanistan is sitting on massive deposits of copper, gold, iron and rare earth minerals valued up to $3 trillion. This provides hope for a future economy that would not have to rely so heavily on foreign donations.

But with an uncertain political, regulatory and security environment, international investors are hesitant. And it could be many years before Afghanistan begins extracting its mineral wealth.

When actress Geena Davis was watching children's shows with her daughter a few years ago, she became so troubled by the lack of female representation, she started a think tank on gender in the media. The Geena Davis Institute recently partnered with University of Southern California professors to conduct a study analyzing gender roles and jobs on screen.

The good news? Prime-time television's pretty decent at depicting women with careers.

It's that time of year again and those little yellow flowers are starting to pop up in gardens across the state.