For the Obama White House, pondering how to reshape the Bush administration's war on drugs, the concerns presented by the deepening crisis in Mexico are twofold.
The first was highlighted by the chief of staff, Rahm Emanuel, talking about US-Mexican counter-narcotics co-operation. "They want to clearly stop the guns from the United States going south. We want to stop the drugs coming north," he said.
The second concern is about another equally pernicious commodity migrating north: the violence. The announcement last month that 730 people had been arrested across the US following a 21-month investigation into Mexico's Sinaloa drug cartel confirms suspicions that the cartels are taking root in the US.
While a drugs strategy may be difficult to elaborate on, officials believe something can be done on guns, at least. The homeland security secretary, Janet Napolitano, has instructed the customs and border protection service "to find guns going south and interdict them".
http://www.guardian.co.uk/world/2009/mar/09/mexico-drugs-usa