Fentanyl has been a right-wing boogeyman and ostensible reason for Republicans to rail for more security at the U.S.-Mexico border. As the opioid crisis continues, the danger fentanyl poses has become vividly clear. While stopping overdoses is important, resurfacing nasty drug war tropes isn’t helping.  Guest: Brian Mann, NPR correspondent covering addiction If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Amicus—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices