This is an ongoing discussion that has been a big issue for Bitcoin from the beginning. I would think that it is becomming increasingly difficult for governments and bankers to do anything about it at this point though. The more it becomes widespread the more difficult it will become to do away with. Yes, they should be afraid, but I think that Bitcoin is still flying under the "radar" so to speak. I think that by the time they actually decide to try to take some legitimate action against it, they will be surprised that it will be too late. Regulating it will still be an option though. I am at least encouraged that the direction the US seems to be going in is for some regulation. That is probably necessary and it really just validates the currency as legitimate I believe.
could not say it any better