What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.
The days of public radio and television being a refuge from political ads may be over, at least for public broadcasters on the U.S. west coast. A court ruling there will allow public broadcasters to begin accepting political ads immediately.
When it comes to risk of corruption, not all states are created equal. A new 50-state investigation found that no state does exceptionally well when it comes to having laws and practices that discourage corruption. And some states do extremely poorly.
Mitt Romney's gotten good news in the latest polls. His support is trending upward, buoyed by a series of a high profile endorsements. But Newt Gingrich is seeing an uptick in support as well, especially in southern states.
Over 130,000 people have filed for damages due to the Gulf Oil Spill. Only a third of the 130,000 claims against BP have been paid out. That's about to change. Professor Howard Erichson, of Fordham Law School, joins us to help sort out the legalities.
We speak with Marc Johnson, the president of Gallatin Public Affairs in Boise. He tells us that the community in Idaho has reacted in a characteristically reserved way to the story of alleged kidnapping.