President Carter helped lead a global health effort to eradicate the Guinea worm, a painful parasite which once infected more than 3 million people a year. Cases now number about a dozen a year.
NPR's Mary Louise Kelly talks with Margie Mason, investigative reporter at the AP, about the alleged exploitation and abuse of the prison labor force in Alabama.
On this week's "My Unsung Hero" from Hidden Brain, Mark Metersky was a medical student at a New York City hospital. He was frustrated with one of his patients when he saw something that surprised him.