That is obvious.

Also, after the latest events (wikileaks etc) government has probably already dispatched somebody to investigate the "Bitcoin case".
For now, perhaps they may be just observing what is happening here, without taking any actions. But later... who knows ?

Of course i know that this may sound a little paranoid, but it's better to be safe than sorry. If you want to be really safe, there is nothing better than assuming that you are already being tracked / observed / spied upon.