from Associated Press
An escalating arms race among Mexico's drug cartels casts doubt on whether Mexico or the U.S. can stop the flow of weaponry, despite renewed vows last week from presidents of both countries.
Stockpiles captured by Mexican soldiers show that warring traffickers are now obtaining military-grade weaponry such as grenades, launchers, machine guns, mortars and anti-tank rockets.
Some drug gangs have even sought explosive material that some experts worry could be used in car bombs and improvised explosive devices of the kind used in Iraq and Afghanistan. Soldiers found 14 sticks of TNT among an arsenal of hundreds of rifles and grenades seized in November from a house in Reynosa, across the border from McAllen, Texas.