While the nation’s attention has been focused on the opioid crisis, a new, more dangerous form of methamphetamine has swept across the country. Today’s show was produced by Miles Bryan, edited by Matt Collette, engineered by Cristian Ayala, fact-checked by Laura Bullard and hosted by Sean Rameswaram. Transcript at vox.com/todayexplained Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices