A World of Scrutiny for Facebook's Privacy Policies Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Facebook CEO Mark Zuckerberg arrives to testify before a joint hearing of the Commerce and Judiciary Committees on Capitol Hill in Washington, Tuesday, April 10, 2018. ( AP Photo/Andrew Harnik ) Produced by Beenish Ahmed Hosted by Tanzina Vega Produced by GBH, PRX and WNYC Studios