of the russia interference earlier and be slow to that and he promised and vowed in front of senators today to make a big difference. >> thank you so much. let's bring back the panel. first of all, so zuckerberg was very prepared. he clearly been prepped. he is an expert team in corn bluthe and the team there. i don't think i'm going out on a limb so ta-- to say the senator didn't seem that family with -- with the product. >> and there is an age divide. there are senators in their 80s who are asking him questions and some may use it or be familiar it with it. and it wasn't a strategy they were going after. but one of the interesting things that he said going forward, i agree we're responsible for the content. this is something that mark zuckerberg has not said before here. so that puts him in more of the publisher realm, something he's