I see you care a lot too.
The ChiComs have a LOT of problems to overcome, and they have very little time to overcome them before the Gods of the Copybook Headings do the Monster Mash on the ruins of the PRC. And their most recent performance re: SARS indicates that, like all totalitarian systems, they aren't able to muster the self-honesty necessary to actually admit to and fix those problems.
The question with Russia and China is not "When will they attack the US?"
It's "Which one will be the first to fight a nuclear civil war?"