shouldn't be regulated. i actually think the question is more what is the right regulation rather than yes or no, should it be regulated. >> what's the right regulation? >> well, there are some basic things that i think there are some big intellectual debates on. on the basic side, there are things like ads transparency regulation that i would love to see. if you look at how much regulation there is around advertising on tv and print, it's just not clear why there should be less on the internet. >> okay. so, dennis, when it comes to regulation, what would more regulation mean for facebook? >> can you imagine cigarette labels being on facebook and surgeon general warnings about your data may be used in certain ways? i don't think that really solves the problem. look at what happened with microsoft and the regulation they had 20 years ago about trying to bust up windows. of course, facebook doesn't want to be regulated, so that's an impossible question for -- mark can't say, i don't want to be regulated. then it looks like he's not being open.