Chiefs of the largest social-media companies tangled with U.S. senators over their role in public discourse amid a contentious election that has stoked bipartisan criticism of the companies’ policies. Facebook Inc. Chief Executive Mark Zuckerberg, Twitter Inc. CEO Jack Dorsey and Sundar Pichai, CEO of Google and YouTube owner Alphabet Inc., have spent the years… Continue reading Social Media CEOs Square Off with Senators in Hearing Over Online Speech