haugen described to senators the urgent threat she feels facebook poses to healthy democracy, to human rights, to children growing up in an instagram filter world. she made special note of just why the company's obsession with growth hinders any meaningful change in the platform. >> facebook understands that if they want to continue to grow they have to find new users, they have to make sure that the next generation is just as engaged with instagram as the current one. and the way they'll do that is by making sure that children establish habits before they have good self-regulation. >> by hooking kids. >> by hooking kids. >> haugen grows a small but growing chorus of people speaking out against this energy. in 2011 tristan harris joined google after his own startup was acquired by him. first worked as a g mail product manager then as a design eth cyst and product philosopher. and his job was to study the way screen applications impact those using their product, how the