these are legal technologies that have unval uses. there are a lot of legitimate uses which allows people to engage in censorship around the world and communicate anonymously online. and this can be used for legitimate purposes as well as for purposes of committing committing crimes. there is simply no way to make it so that it only works if you have good intentions. >> the bit coin, a currency of choice on these black market website. they can be anonymously. they only exist in the digital realm. how much is a factor of bit coin? is that something that should be outlawed? >> according to the administration they incorporated tighter security measures. in their announcement, they said welcome back to freedom. we have overalle had a security overhaul. they're snub their nose at the fbi. de facing the notice that had been placed on the silk road site that the fbi put up when they took the site down. do you think this online market was safer than it was before? >> i think it's difficult to tell. indeed, if i was a criminal interested in us