First of all, I do not think that the government will "take or guns." I think someday there may be restrictions on so-called "assault weapons," and maybe even on high cap magazines. However, I think that day is a long ways off. Realistically, as long as I can have a hand gun and permit to carry, I feel safe.
And this doesn't worry you at all? You may not care that you can no longer own an AR-15 or a 30-rd mag if you have no interest in shooting with either, but are you not concerned about the slippery slope this may cause? Not that we're not already on a slippery slope.
To answer your original question, I'm a little worried about the future and certain aspects of .gov. My biggest concern at the moment is the end of the year. I personally find it hilarious that more than ever before, people truly believe the end of the world comes in just a few months. So while I'm not at all worried about Armageddon, I am worried about how the believers will act when the time comes near.
Mass hysteria?
Stay tuned...