If you don't believe that the USA is a super power in decline, or at least a super power that has stagnated, you need to check out the Olympics.
First, the so-called basketball Dream Team, made of NBA superstars, got its collective ass kicked by none other than teeny-tiny Puerto Rico yesterday. If we can't trounce a team from a country whose existence we basically support free of charge, then I think the Apocalypse is upon us, don't you?
Second, check out the Olympic medals leaderboard in the right column of this page. Who's grabbing all the gold?
And what are the Chinese winning at so far? No, not swimming or running or other useless sports. Why waste your time with recreational sports when you can beat the world at rifle shooting, pistol shooting, and judo? They're also doing quite well in powerlifting. These skills will come in handy when China decides to literally dominate the globe, after which time the Chinese will be able to sit back and go swimming or out for a quick jog any damn place they want. Until then, they practice ass-kicking.
What are we going to do if the Chinese come after us, swim away?