This is why we should never make BTC an officially recognised currency, because then the government has control over it. Otherwise, they'd have to start passing new laws to stop it because there's nothing wrong with trading meaningless data about and if people will dish out money for the data that's their prerogative.
As soon as anything official happens they can tax it, make it illegal etc..
Also, I don't think people realise the severity of BTC becoming illegal; if it does that then it will ruin it forever. BTC can thrive right now with nobody touching it, but as soon as it's illegal the community will become a fraction of what it was and the dream can never happen, whatever that was.
Not to mention if the coin's not illegal, then it can still be used for illegal activities, so anyone looking to operate in illegal ways with BTC would have an easier time, but really I don't have to consider you guys since I feel that is out of the question (personally).