On the same day whistleblower Frances Haugen was testifying before Congress about the harms of Facebook and Instagram to children in the fall of 2021, Arturo Béjar, then a contractor at the social media giant, sent an email to Meta CEO Mark Zuckerberg about the same topic. Two years later, after seeing little change, Béjar is testifying before Congress on Tuesday about social media and the teen mental health crisis, hoping to shed more light on what Meta executives, including Zuckerberg, knew about the harms Instagram was causing and chose not to do anything about it.