Thousands of students made threats after the Apalachee High shooting in Georgia, a Post analysis finds. Nearly 500 were arrested. In Florida, Volusia County Sheriff Mike Chitwood decided he’d had enough.

How to reverse an opioid overdose

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.