Yes, there is.
The thing about the US Gov't is that it's SLOW. But, when it starts cranking along, it really starts getting aggressive. CISPA/SOPA/etc, if you look at the sponsors and voting records, are split issues for Dems, and nearly 100% support from Reps. Well, as soon as the Reps get a majority back in the House AND Senate, there goes the neighborhood. The establishment Republicans want to eliminate Bitcoin (a few have been kind enough to say they want to regulate it instead), while a handful of fringe libertarian Republicans want to embrace it.
But one thing I can absolutely guarantee : the Government will NOT be able to resist getting involved. It's just what they do.