We have everything ready for an onslaught likethis (Score 1)

You guys may not know this, but during the Kosovo war we were ready to hack into computer mainframe's and shutdown electricity etc.. It is not practical however for China to attack the U.S. in this way simply because of the fact that their whole export and import system is based on the U.S. hence it would be foolish for them to try anything. This infact is a cold war in a sort.