During a 1964 effort to register Black people to vote, known as Freedom Summer, the Ku Klux Klan killed three civil rights activists in Philadelphia, Miss. In this special “Post Reports” episode, residents discuss the painful legacy.

Why is the U.S. obsessed with sanctions?

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.