Drug overdose has killed hundreds of thousands of Americans. Fentanyl – a synthetic opioid mass produced in Mexico and smuggled across the border – drove the increasing number of fatalities ever higher. But there’s a good news story that hasn’t been widely reported… Drug-related deaths fell year on year from 2023 to 2024 by around 25%. In some states, the decline was even more dramatic - North Carolina was one of them. In a two-part series for Assignment, Linda Pressly first visits the state capital of Raleigh to report on some of the reasons why fewer people are dying from illicit narcotics.

But drug-related fatalities haven't fallen everywhere in the US. In Nevada, those mortality statistics have continued to tick up. In the second in this Assignment series, Linda travels to Las Vegas and Reno to find out why this desert state is bucking the trend.

This episode of The Documentary comes to you from Assignment, investigations and journeys into the heart of global events.

(Image: Kayla, a former fentanyl user and now a client of a LEAD programme (Law Enforcement Assisted Diversion) in North Carolina that diverts substance abusers away from crime. Credit: Tim Mansel/BBC)