Since 2019, the number of Americans killed by fentanyl has jumped 94 percent. Today on "Post Reports," we go inside Operation Sour Cream — and inside the pipeline bringing the deadly drug from Mexican labs to U.S. streets.

New life hack: The joy snack

Post Reports is the daily podcast from The Washington Post. Unparalleled reporting. Expert insight. Clear analysis. Everything you’ve come to expect from the newsroom of The Post, for your ears. Martine Powers and Elahe Izadi are your hosts, asking the questions you didn’t know you wanted answered. Published weekdays around 5 p.m. Eastern time.