Maybe the uniformed Mexican soldiers were the drug dealers, and shot at the INS for this very reason. I doubt that even the Mexican military shoots suspected smugglers on sight, or that it is too "antsy" to tell the difference between a smuggler and an INS officer. Nor does shooting at a fleeing INS vehicle sound like standard policing behavior.
Nice to see that the INS's standard policy when confronted by deadly force is to flee. Makes me less than comfortable knowing that this undermanned agency is all that is "defending" our borders.
I caught that too. What is up with that? Leaving to avoid a confrontation?!