uk to help set up those information weapons. and so what we worked on at scl and later at cambridge analytica is data harvesting programs where we pull data from users of apps and all the friend networks and run that data through algorithms that can profile the psychological attributes so we would know what information we need to feed to online platforms o to exploitmental vulnerabilities that are algorithms showed they had. >> this goes beyond just sort of programming advertisement toward a certain group. because you told us you can tell something about people based on things like whether they like game of thrones or country music. what can you tell? >> yeah. so, you know, i think it's easiest to think about when you go on a date, for example. the questions that you ask on a date, right? you ask what music do you like? what kind of movies do you