We should keep this in mind...

...the next time the Mexican government starts agitating for a new gun ban in America...

Texas elected officials are “disingenuous or naive” to believe drug violence is spilling across the border into the United States, Mexican Ambassador Arturo Sarukhan said Friday.
...
Sarukhan said that future violence in Texas was theoretically possible “if the drug-trafficking syndicates decide to use San Antonio as their hub and local law enforcement step up their efforts to shut them down.”
“But that is not happening,” he added.

If the drug violence isn't spilling over into the United States, that would imply the border is much more secure than we have been led to believe. Which puts the lie even more to the whole "U.S.-guns-fueling-Mexican-violence" meme, because it makes no sense to say the traffickers are being kept south of the border but the guns aren't. And isn't San Antonio already used as a hub of sorts? They can't have it both ways. Or at least they shouldn't be able to.