https://www.reuters.com/article/usa-congress-facebook-testimony-quotes/what-they-said-quotes-from-a-facebook-hearing-in-congress-idUSKBN2GV1NZ

Facebook whistleblower Frances Haugen testified before the U.S. Congress on Tuesday, telling lawmakers the social media giant knew its apps were harming the mental health of some young users. Here are some comments from the committee hearing: