US officials say Colombian and Venezuelan drug traffickers are increasingly reliant on smuggling routes that move drug shipments to Europe via West Africa.
Per capita ownership of firearms in the US has doubled since 1968.
The often-slow arc of good news may not make headlines. But 2012 brought its quiet share: from extreme poverty dropping by half since 1990 to a robot with the bulky profile of an NFL player that may have a role in bringing jobs back to the US.
A 16-year-old chess player from Nigeria and his mother inspired a Virginia town.