Nice info!That can be said for any major base. A nuclear suicide attack on Kadena would cripple that base and we have a large amount of Air Force assets there. This problem is actually a bigger threat for air force and Army then it is for the navy as the Navy rarely has lots of assets in any port at any one time, unlike the Air Force or land based units which don't have the advantage of being able to sit out in the middle of the ocean for weeks at a time (or months if you're a sub). Imagine a suicide nuclear attack on Fort Hood. That would be much worse. We can deal with a relative few ship losses (don't forget under overhauls ships generally don't have full crews). Having thousands upon thousands of soldiers vaporized is something entirely different. 65,000 soldiers and their families are stationed there. The super base model we're going to presents some serious inherent threats for different branches of the military.
Luckily the Navy realizes the inherent threat of lots of ships in one harbor at any one time. I've never heard of more then one or two carriers being worked on extensively at any one port at any time. Apparently we still abide to the lessons of 12/7/1941.