all, of course, contributing to these echo chambers. i just want to show you a quick tip very quickly. an adviser to this whistle-blower explaining some of this. >> what it does is amplify the messages that it noise will drive engagement, and it just turns out we humans get most riled up by lies and hate and all sorts of misinformation. >> but if you ask mark zuckerberg or for that matter some of his spokespeople, they will tell you basically it's all -- it's all false. it's all a load of nonsense and that the media is just cherry pick all of this information. the awkward thing for mark zuckerberg, of course, is this is facebook's own research and there are tens of thousand of pages of documents, and there are many more stories to come. >> many more stories to come and the old adage follow the money. learn a lot from following the