NPR launches a special investigation into confidential informants. They're a vital crime fighting tool, but what happens if those informants go astray? The confidential informants operate in a secret, largely unregulated world.
Is obesity a disease or a matter of beauty?
The American Medical Association has passed a resolution calling obesity a disease. But some people think that will only make the problem worse, if it's a problem at all.
12:45 p.m. more