thank you for joining us this evening and congrats again professor david reynolds.everyone has a nice evening and we hope to see you at another event soon. ♪♪ >> weekends on c-span2, intellectual view every saturday, american history tv documents america story sundays, book tv brings the latest nonfiction books and authors funding for c-span2 from these television companies and more including media,. >> the world changed in an instant, media comports credit, internet tracking from assault and we never slowed down. schools and businesses my virtual and we powered a new reality is we are built to keep you ahead. >> media, report c-span2 as a public service. >> watching book tv from ccn to fliptop nonfiction books and authors every weekend. book tv, television for serious readers. >> stephen is the author of this new book, the rise of digital repression, technology reshaping power, politics resistance. what you mean by visual repression? >> thank you for having me on. when i'm talking about digital repression, one phase the information communication technologies are be