Detailed text transcripts for TV channel - CNN - 20190211:03:11:00
>> his performance in front of congress was poised. he had the right answers. i think he did laps around the people there. >> reporter: but part of that success was due to the facts many of the questions asked by the senators demonstrated a lack of understanding about how facebook and tech in general works. >> if i'm e-mailing with an what's app, does that ever inform your advertisers? >> how do you sustain a business model users don't pay for your service? >> senator, we run ads. >> i see. >> it was an embarrassment to the members of congress. it reconfirmed what most of the valley and probab...