/begin my summary[N. Korean Missile] Taepodong-2 Engine Defect, Exposing its ProblemsThe source of N. Korean Taepodong-2 missile failure is now being narrowed down to its engine problem.According to NIS(S. Korean Intelligence Agency,) Taepodong-2 was launched at 5am, on July 5th, from the launch pad at Munsudan-ri, Hwa-dae County, N. Hamkyong Province. After its vertical ascent, it was flying over East Sea when its engine developed 'shaking.'It is the same as the situation where imperfect combustion of automobile fuel causes engine to shake. Experts suspect that some technical problems inside booster rockets lead to imperfect combustion of its liquid fuel. According to this scenario, this 'shaking' persisted for (initial) 40 seconds of...