When they take away our guns. After that, well, just look at China, Germany, Russia, and pretty much any other country that has (or had) an unarmed populace. Basically, I don't see America getting better without at least getting far worse than it is right now. I hope that I'm wrong about this, but right now it doesn't seem that I am. :/
As long as we have a corrupt government system, we're going to have a corrupt and ever-deteriorating country.