. >> host: elizabeth wasserman who is the editor of tech pro at politico wants to know will do not track features in web browsers solve the privacy problem, or are laws neededsome. >> guest: laws are needed. luckily, i am an opinion column it, not -- columnist, not a news reporter at "the wall street journal" in all things d, so i can have opinions, and it is my opinion that we need a serious, comprehensive, federal-level privacy law in the united states, digital privacy law. i do not believe that the online advertising industry and other online businesses have been or will be successful at regulating themselves. and it's no different than other experiences we've had over the long history of the united states. i don't mean to sound like i want to go crazy and, quote, regulate the internet. on the other hand, i don't believe the internet should exist as a place outside the law. and, so, you know, here's an example of one thing that might happen. we know -- i know before i say this that the political climate in congress is never, ever this simple. but you could have a bill which simply sai