Cartels increasingly used military-style terrorist tactics to attack security forces. There was no evidence of ties between Mexican organized crime syndicates and domestic or international terrorist groups. The violence attributed to organized crime groups on the border, however, continued to strain Mexico’s law enforcement capacities, creating potential vulnerabilities that terrorists seeking access to the United States could exploit.
Usually, with regard to Mexico, I'd say the State Department is slightly more shrill than the situation would merit, but here I think that it's one of the few agencies (indeed, it might be the only one thus far) labeling the situation accurately. Though I think the likelihood of international terrorists exploiting vulnerabilities on the northern border is all but nil.