AdvertisementU.S.-Mexico Efforts Targeting Drug Cartels Have Unraveled, Top DEA Official SaysUpdated May 03, 2021Brian MannfacebookEmailPedestrians walk past Mexico's Consulate General in Los Angeles in October, shortly after ex-Mexican Defense Secretary Salvador Cienfuegos Zepeda's arrest at Los Angeles International Airport at the DEA's request. Charges were later dropped. (AFP via Getty Images)This article was originally published on May 03, 2021.