 and beginning to cut off the ways in which cartels can access the chemicals they need to make meth and fentanyl, and then cutting off the ways in which they can launder the billions they're bringing in from these funds is essential. I think Claudio Scheinbaum needs to start there. Chris Dalby is director of the think tank World of Crime and the author of CJNG, A Quick Guide to Mexico's Deadliest Cartel.