Roger, Thanks for the quick reply and links. Although this happened over six months ago I had not seen any discussion about it. A few questions... - How did Steven Murdoch and Richard Clayton tracked down the operator? How did they determine it was an innocent mistake? Even if the operator is benevolent, that capability with so few nodes is disturbing. - How were 9 nodes apparently able to touch 11% of all Tor traffic? Have changes to the code since then reduced this vulnerability? - Do you think there needs to be activity (perhaps "collusion" between a group of good guys), similar to what's on Bit Torrent, to identify and blacklist nodes (discussions about the risks and legality of such things can be left till later)? - Is there a transcript of the talk those slides were given with, or at least a video?