At the end of March, troops of a major drug cartel launched a series of attacks on military personnel and installations in a half dozen cities in the northern Mexican states of Nueva Leon and Tamaulipas. Fortunately, things did not work out as the narco-thugs had hoped. At least 18 of them are now taking the kind of siesta from which there is no awakening and, at last count, only one Mexican soldier was injured. Contrary to the notion that the cartels depend on semi-automatic rifles bought illegally in the United States, the cartel conducted its attacks with a variety of weapons that cannot be legally bought anywhere in our country. As the Los Angeles Times reported, "In coordinated attacks, gunmen in armored cars and equipped with grenade launchers fought army troops this week. . . . The army said it confiscated armored cars, grenade launchers, about 100 military-grade grenades, [and] explosive devices" in addition to a large quantity of ammunition.