After they purchase Unocal, if we try to send a carrier group into the China Sea as a show of force, they'll just shut off the oil. I cannot believe that anything good will come out of the chinese military having access to energy production facilities on the North American continent.
Eventuality IMO.....they have been watching us waste time and money over oil issues and they figure it's just one more tool in their kit bag.
With their focus on controlling if not outright conquering both the Strait of Malacca as well as the Strait of Hormuz, the PRC (with their Pakistani and Burmese partners in crime) are intent on become masters of the spiggot.