The popular new Netflix documentary “The Social Dilemma” looks at how information collected online may be used to influence and manipulate us.

Former Google design ethicist Tristan Harris, who is heavily featured in the documentary, has been warning the public about social media platforms for years. He sites like Facebook and Twitter are negatively impacting our society and even creating national security threats.

Earlier this week, Harris joined host Jessica Rosenthal on The ‘Rundown’ to discuss his experience working for Silicon Valley and why he decided to speak out.

The conversation was too long and we could not include all of it in our original segment. On the FOX News Rundown Extra, you will hear our full conversation with Tristan Harris.