Zeynep Tufekci is a sociology professor at the University of North Carolina at Chapel Hill. She wrote “Twitter and Tear Gas: The Power and Fragility of Networked Protest.”

David Snyder is the executive director of the First Amendment Coalition. He comments on free speech issues.

Darren Linvill is a Clemson University professor who researches disinformation on social media.

Travis View is a conspiracy theory researcher and a co-host of the podcast QAnon Anonymous.

Josh Pasek is a professor of communications and media at the University of Michigan. His areas of expertise include misinformation and misperceptions.

Brendan Nyhan is a government professor at Dartmouth College. His areas of study include fake news, fact checks and digital media literacy.

Joanne Miller is a political science and international relations professor of the University of Delaware. Her areas of expertise include political psychology, misinformation and conspiracy theories.

Filippo Menczer is a computer science professor at Indiana University Bloomington and the director of the school’s Observatory on Social Media.