[catnip]

It's simple. I will monitor your networks and if I see somthing that looks like TOR(omg) I send my police buddys to shoot you in the face.

[eqdw]

Exactly. It would be exceedingly difficult to locate the silk road server, but trivially easy to find someone who was going to it

[weavejester]

No it wouldn't. You can determine if someone is running Tor, but not which sites they are visiting with it. That's sort of the whole point.