Here's a blog by Gertz, who wrote the first few opening articles, giving an overview of the various aspects where China threatens the U.S., and the tools at their disposal to use on us:
Topping the list is China's military buildup, in particualr what G-man cited above about anti-sattelite systems to wipe out the center of the U.S.'s military superiority.
Along with the threat to Taiwan (who the U.S. is obligated to defend), which China is burning to take back.
And China's foreign aid that's pouring into oil-rich third-world nations in Africa and the Americas, that is displacing U.S. oil interests.
