http://arstechnica.com/tech-policy/2016/11/fbi-operated-23-tor-hidden-child-... https://www.reddit.com/r/news/comments/5ceq0y/fbi_operated_23_torhidden_chil... According to an FBI affidavit among the unsealed documents: In the normal course of the operation of a web site, a user sends "request data" to the web site in order to access that site. While Websites 1-23 operate at a government facility, such request data associated with a user's actions on Websites 1-23 will be collected. That data collection is not a function of the NIT. Such request data can be paired with data collected by the NIT, however, in order to attempt to identify a particular user and to determine that particular user's actions on Websites 1-23. It's to be expected that all variety of snakes inhabit darkwebs.