La rivière d’acier
[Reuters] PHOENIX - When machinegun-toting hit men fought a bloody battle with police and troops around the Mexico town of Cananea that left 23 dead in May, it at first seemed to be the latest chapter in a very Mexican drug war.
But as U.S. and Mexican detectives subsequently traced powerful assault weapons recovered from the battlefield to Texas and Arizona, it raised the curtain on a deadly and controversial flow of arms from the United States.

