Los Zetas drug cartel operate spy networks in Mexico and U.S. - Wichita Military Affairs | Examiner.com
►https://www.examiner.com/article/los-zetas-drug-cartel-operate-spy-networks-mexico-and-u-s
To protect and ever expanding criminal enterprises, the Zetas drug cartels maintain highly developed intelligence networks on both sides of the border and have hired private armies to carry out enforcement measures and espionage according to U.S. government sources (see report: A Line in the Sand: Confronting the Threat at the Border, prepared by the Majority Staff if the House Committee in Homeland Security, Subcommittee on investigations ►http://www.house.gov/sites/members/tx10_mccaul/pdf/Investigaions-Border-Report.pdf ).