One of the most dramatic changes in Afghanistan since the fall of the Taliban is the increase in life expectancy from 45 to 62 years. That gain is almost entirely a function of reductions in child mortality due to the spread of basic health services.
Last year, a record number of people were exonerated for crimes in the U.S. Retesting of DNA evidence was once the primary force, but now experts say it's because prosecutors and police are reinvestigating old crimes — and learning that they sometimes got the wrong man.
Cigarette smoking costs you a lot more than money, a graphic new ad campaign warns teenagers. It's the Food and Drug Administration's first foray into slick messaging aimed at keeping teens from taking up cigarettes. Most long-term smokers started as teens.
Facebook's big birthday comes amid tales of trouble — that its youngest users don't find it cool anymore. But Facebook doesn't seem fazed. It is, after all, a company that serves almost one-fifth of the world's population and took in more than $7 billion last year.