https://chemsec.org/open-letter-to-the-commission-regarding-transparency/
https://www.brookings.edu/opinions/the-foreign-policies-of-the-sinaloa-cartel-and-cjng-part-iii-africa/
https://static1.squarespace.com/static/5afc0bbbf79392ced8b73dbf/t/5b07d7ce1ae6cf2a4178f587/1527240672975/SGC_Full_Report.pdf