If, If, If. Your truly ignorant on the subject. You said," the government has even taken steps to keep US soldiers segregated from Japanese citizens. Thus they are not allowed to socialize off base". That is false. I know close friends that were stationed in Japan less than two years ago that had all of the socialization that they wanted. Get your facts straight.

Next, You stated,"With the protection of the Chinese the cultural divide wont be as great." To whom will the cultural divide not be as great? The Japanese aren't communist. The Japanese are the most "Americanised" of all of the Eastern Asian Countries.
Next,you stated,"China would need allies should she decide to mount an offensive, attacking Taiwan would be counter productive." China wants their to be one China under the Governments rule. The Taiwanese would never join with China. They don't even believe that they are Chinese because their grandparents fled about 66 years ago after a failed coup sponsored by the U.S. who tried to infiltrate China. The Taiwanese after the U.S. annointed them to the status as a viable and recognised government have subsribed to the notion that they are somehow better than the Chinese in the same way that the mainland looks at those who were from Canton or Hong Kong.

I didn't say China had no Nuclear weapons. As far as Bin Laden and his terrorist network, they are more of a danger to the U.S., than China.