No, Russia is NO challenge to the USA. I am not writing this cause I like them. In fact, I wish them no ill will but I feel first and foremost, that I am FOR AMERICA, the REPUBLIC.
Russia will not cure their all their ills and I really believe that.
EU is the new threat. Their only population growth will be with transplanted and home grown/born islamics not the moderate-type muslims. They will be our future problem and the problem of Russia as well.
I am old and most likely will not see this happen. But I really think the EU is out to get US.
Agreed about the EU. And I don't think Russia will be a challenge; but if it's going to be, it'll take it at least a couple of decades (my personal hunch is that Russia's demographics and various border conflicts will make it weak and underpopulated, a real temptation for China to move in there ... I'd rather not see that happen).