The fact that the Bitcoin economy even exists and continues to thrive indicates to me that what the US government thinks (or any government for that matter) about Bitcoin will become more and more irrelevant as we ride this rollercoaster. The future of government looks like this:
Another man duck-walks across the flight deck.... He's about sixty, with a dirigible of white hair that was not ruffled in any way by the downdraft.
"Hello, everyone," he says cheerfully.
"Who are you?" Tony says.
The new guy looks crestfallen. "Greg Ritchie," he says.
Then, when no one seems to react, he jogs their memory. "President of the United States."
"Oh! Sorry. Nice to meet you, Mr. President," Tony says, extending his hand....
"Frank Frost," Frank says, extending his hand and looking bored.
"Don't mind me," Y.T. says, when Ritchie looks her way. "I'm a hostage."
-From "Snowcrash"