(crowd chanting) >> narrator: within days, ghonim's online cry had helpedfi the streets of cairo withreds of thousands of protesters. (crowd chanting) 18 days later... >> (translated): presidentni muhammad hubarak has decided to step down. lyheering) >> they have tru achieved the unimaginable. man: i s generally acknowledged that ghonim's facebook page first sparked the protests. >> jacoby: there was a moment that you were being interviewed on cnn. >> yeah, i remember that. >> first tunisia, now egypt, what's next? >> ask facebook. >> ask what? >> facebook. >> facebook. >> the technology was, for me, the enabler. to engage with others, i woulde have not been able to propagate my ideas to others without social media, without facebook. >> you're giving facebook a lot of crer this? >> yeah, for sure. hiwant to meet mark zuckerberg one day and than actually. >> had you ever think that this could have an impact on revolution? >> you know, my owopinion is that it would be extremely arrogant for any specific technology company to claiany meaningful role in, in those. but i do think that the

they just look at engagement metrics. >> narrator: ghonim himself became a victim of those trics. >>e was a page, it had, like, hundreds of thousands of followers-- all what it did was creating fake statements, and i was a victim of that page. they wrote stements about me insulting the army, which puts me at serious risk because that is n something i said. i was extremely naïve in a way i don't like, actually, no thinking that these are liberating tools. it's the spread of misinformation, fake news, in egypt in 2011. >> narrator: he says he later talked to people he knewk at facebd other companies about what was going on. >> i tried to talk to people who are in silicon valley, but i feel like it was not, it was not being heard. >> jacoby: what were you trying to express to people in siliconi valley at th? >> it's very serious. whatever that we... that you are building has massive, serious tintended consequences on the lives of people s planet. and you are not investing enough in trying to make sure that what you are building does not go in the wrong way. and it's very hard to be in t