Mexican cartels are trafficking deadly narcotics into the United States with impunity, a top Drug Enforcement Administration official said on Monday.
Cooperation between U.S. and Mexican authorities to target cartels has deteriorated amid a surge of illegal immigration at the U.S.-Mexico border, Matthew Donahue, the DEA deputy chief of operations, told NPR. Donahue said Mexican law enforcement have cut off ties with the DEA, fearing punishment from the Mexican government if they cooperate with the U.S. agency—a breakdown that has helped cartels smuggle fentanyl and methamphetamines into the United States.
