My thoughts on the governmental stance toward BTC isn't as sour as many would make it to be. I think they have a much more favorable outlook than many think, however, the activity we've seen taken by US enforcement has been focused on compliance, rather than on the BTC protocol.
I understand that, and we can't really know for sure what the government feels about this.. But you could also argue that the government don't like the BTC protocol because of their lack of power regarding controlling. When they caught that guy behind silkroad, they found out that he had many millions in btc, but couldn't get a hold of it because they didn't have his password. So because it not a physical object, they might be afraid that money could circle around without them being able to control it.
Take for example the cuts of funding for wikileaks, that was possible because they could put pressure on paypal and the banks, but you can't do the same with bitcoins. Unless you shutdown the internet or physically force the users of btc in any way.