i started to see after spending 11 years building things that i was proud of, i was concerned about the information that could be shared on the platform and it can impact communities large and small in ways that we don't understand. there wasn't being enough effort being put to really understand that. >> let's understand what it does. is facebook a radicalization engine? is it radicalizing millions of americans? >> i don't know. i'd love to know. a great way for us to understand that is to have more access to the data that will give researchers and journalists and teams the ability to do that hard work. >> here's what facebook said when we booked you. they said we simply disagree with brian. we offer more transparency built around our quarterly transparency report, our realtime dashboard and our programs that grant researchers open access to privacy-protected data. are they basically saying you're not doing what we want but we are doing these other things so we are more transparent than twitter or google? >> yeah, that's what they're saying. but being the most transparent