Russia has used Botnets before. USA almost certainly will not though, at least not officially. A lot of the CP hidden services were hacked into and deanonymized by the Dutch National Police. It actually led to several arrests as some of them were hosted out of peoples houses. In some cases they got stuck in virtual machine isolation and couldn't deanonymize the site operators, in these cases they simply deleted all of the content and posted warning messages. Around the same time several of the CP hidden services were also harassed by 'anonymous' , although as usual their epic pwnage was really pathetic fail. In the case of Lolita City I believe they did publish all of the usernames and other information of the members, which from what I can gather amounted to about as serious of an attack as it would be if somebody copy pasted the Members list from SR forum.