This podcast episode explores the global threat of synthetic opioids, focusing on the widespread misuse of these drugs and the challenges in combatting their production and trafficking. It discusses the origins of synthetic opioids and their medical uses, as well as the emergence of illicit markets supplying these drugs. The episode also highlights China's central role in the fentanyl crisis, with the majority of illicit fentanyl consumed in the United States originating from China. The section emphasizes the complex and deadly supply chain of fentanyl, from production in China to smuggling into Mexico and trafficking into the United States. Finally, it addresses the challenges faced by Mexico in combating the flow of fentanyl and the need for collaborative efforts to address the crisis.