Leaving Afghanistan: For Better or Worse?

The search for Osama bin Laden turned into America's longest war and a vastly expensive exercise in trying to build one of the world's poorest nations. But critics say much of the country has been left out, while US dollars have fueled corruption that's even now raising the cost of American withdrawal. Meantime, the Taliban reportedly are divided, as one faction talks peace while the other waits to wage more war when Afghan forces are on their own. After twelve years of US involvement, what does Afghanistan look like now? What's in store for the future?