Goverments are unlikely to bad Bitcoin. I doubt they are not eager to use this new fancy technology.
As for the the Exchange hack, it happened and it's still going to happen.
They will do it if they think that their interests are affected, it's that simple you must remember that governments are not there to ensure the well being of their people that is not the reason they are there, they want to obtain power and anything that threatens that power is something they are going to be against, right now they're not forbidding bitcoin because they think they can get money out of it, once they realize that is not going to be the case and in fact are going to lose money because of it you'll begin to see a lot more serious talk about banning bitcoin.
