A Texas man has been charged in an ongoing Mexican cartel effort to buy guns in the U.S. The man is charged with having personally purchased at least 38 weapons for the cartel. Agents with the U.S. Bureau of Alcohol Tobacco Firearms and Explosives recently arrested 31-year-old Carlos Alberto Zamudio on straw purchasing charges. Straw purchasing refers to the practice of U.S citizens with a clean background purchasing weapons for people who are not able to such as convicted felons, foreign nationals, and, along the Texas border, Mexican drug cartels.