NBC New Report: Marijuana and Mexican cartels: Inside the stunning rise of Chinese money launderers

For much of his career as a federal drug agent, Ray Donovan had a singular focus: the capture of Mexican cartel boss Joaquin “El Chapo” Guzman. When Guzman was finally arrested in early 2014, fentanyl trafficking was on the rise in the U.S., and Donovan soon found his next project. He enlisted a data scientist in an effort […]