Planning for North Korean collapse

strategypage writes: U.S. military planners have discovered that China's current arsenal of non-nuclear ballistic and cruise missiles could probably knock out five of six major American air bases in Japanese and South Korea. Oops. To make matters worse, this has become an issue as North Korea stumbles towards political collapse, and China indicates that it will assume control in the north if that happens. South Korea believes it should move north to deal with a collapse, and this plan is becoming a contentious issue with China.