Mark Zuckerberg Grilled Before Congress; Paul Ryan Retires from House 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 Mark Zuckerberg Grilled On Data Privacy Before Congress Who Owns Sherlock Holmes's Real-Life Address? Should the U.S. Copy Europe's Privacy Laws? 50 Years After Fair Housing Act, Discrimination Persists How Will the Republican Tax Bill Affect Your Filing? On Heels of Tax Cut Package, Speaker Paul Ryan to Retire from Congress Facebook CEO Mark Zuckerberg testifies before a House Energy and Commerce hearing on Capitol Hill in Washington, Wednesday, April 11, 2018. ( Andrew Harnik / AP Photo ) Produced by PRI and WNYC