The China Connection: How One D.E.A. Agent Cracked a Global Fentanyl Ring

Fentanyl is quickly becoming America’s deadliest drug. But law enforcement couldn’t trace it to its source — until one teenager overdosed in North Dakota.
Read more: https://www.nytimes.com/2019/10/16/magazine/china-fentanyl-drug-ring.html?source=Snapzu