The Man Who Invented Facebook Ad Tracking Is Not Sorry

A worker sits in the Facebook office in Menlo Park, California.
( Jeff Chiu. File / AP Photo )

Produced by Kat Aaron , Megan Cunnane, Joe Plourde and Jen Poyant

Music Credits: "Downhill Racer" by Blue Dot Sessions , "Time Waste" by Podington Bear , "Heliograph" by Chris Zabriskie , "Algo Rhythm Natural" by Podington Bear

Produced by WNYC Studios