Overdose deaths are plummeting. Here’s what worked.

Sam Quinones, a journalist, is the author of five books, including “Dreamland: The True Tale of America’s Opiate Epidemic” and “The Least of Us: True Tales of America and Hope in the Time of Fentanyl and Meth.” His latest, “The Perfect Tuba,” is a sequel to those books. Last spring, I interviewed a Salt Lake []