Battles between rival drug cartels have made Juarez, Mexico, one of the deadliest cities in the world. And the impact of the violence has been felt across the border, in neighboring El Paso, Texas. Need to Know spoke with eight El Paso teens about how the drug wars have affected their lives, and found out why some of them chose to join gangs themselves.
El Paso teens talk about drug violence
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Could Boston attack impact U.S.-Russia relations?
The alleged link to Chechnya also raises questions about U.S.-Russian relations at a time when the relationship is on the skids.
Boston reading guide
Need to play catch up? Here's a full list of resources for more on what's going on in Boston.
Active scene: Boston manhunt
PBS NewsHour will live-stream updates, including news briefings, from Boston as they happen.
