Mark Zuckerberg testifies on Capitol Hill (full Senate hearing)

Live coverage and analysis of Facebook CEO Mark Zuckerberg's testimony before a joint hearing of the Senate Judiciary and Commerce committees. Read more: https://wapo.st/2HrQ2TB Subscribe to The Washington Post on YouTube: http://bit.ly/2qiJ4dy Follow us: Twitter:   / washingtonpost   Instagram:   / washingtonpost   Facebook:   / washingtonpost