Chris Mooney, John Muyskens and Carolyn Van Houten on the dangerous hot zones spreading around the world. David Weigel previews the next Democratic presidential debate.  And Sarah Kaplan describes a ‘Super Earth’ 110 light-years away.

A report card on school segregation in America

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.