In past two days , Project Coronado resulted in arrests in 15 states . Michele Leonhart , acting chief of the Drug Enforcement Administration , said the cartel was known for specializing in the trafficking of methamphetamine and for its brutal violence , including beheadings . Officials : 4-year operation produced nearly 1,200 arrests , 11.7 tons of cocaine seized . AG says operation targeted La Mafia , a top Mexican drug trafficking group . Law enforcement officials : Crackdown will target methamphetamine market in U.S .
In past two days , Project Coronado resulted in arrests in 15 states . Officials : 4-year operation produced nearly 1,200 arrests , 11.7 tons of cocaine seized . AG says operation targeted La Mafia , a top Mexican drug trafficking group . Law enforcement officials : Crackdown will target methamphetamine market in U.S .