Leonard Pitts: Social media platforms and the fate of truth
(Andrew Harnik | AP file photo) Facebook CEO Mark Zuckerberg testifies before a joint hearing of the Commerce and Judiciary Committees on Capitol Hill in Washington on April 10, 2018.
(Andrew Harnik | AP file photo) Facebook CEO Mark Zuckerberg testifies before a joint hearing of the Commerce and Judiciary Committees on Capitol Hill in Washington on April 10, 2018.