Wednesday, Mar. 21, 2018

Published: March 21, 2018, 9:45 a.m.

A young Canadian data expert came up with a plan to harvest people\u2019s personal data from Facebook, and to use that information to influence their voting. How did the brains behind Cambridge Analytica become its whistle-blower? Guest: Matthew Rosenberg, a New York Times reporter in Washington. For more information on today\u2019s episode, visit nytimes.com/thedaily.