Shane Harris on how intelligence agencies share domestic terrorism threats; Rosalind S. Helderman on what we already know about the special counsel’s investigation; and the growing list of states that want to change the electoral process.

After discrimination charges, Facebook making big changes to its ad system

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.