Destroy the cartels

The tragic killing of two U.S. citizens last week in the border town of Matamoros, Mexico, should refocus American attention on the glaring problem of transnational drug cartels’ de facto control of large swaths of our porous southern border. It is not an exaggeration to say that the U.S.-Mexico border, at this point, is one of the most dangerous borders in the world. Vicious cartels engage in…