这一防御体系的关键环节可能就是控制该体系的整套程度系统里根总统的《主动战略防御》计划(即星球大战计划)的批评者们提出了下面一个疑点:在敌方导弹到达美国目标之前对之进行拦截并加以摧毁的防御系统所必需的激光和粒子束武器、传感与制导装置、战斗指挥站以及其他一些硬件是否一一都会有效可用。但是他们却一直严重地忽略了对于大规模核导弹攻击进行有效防御时可能成为最大障碍的一个因素,那就 Perhaps the key link in this defense system is to control the package’s extent. Critics of President Ronald Reagan’s “proactive strategic defense” program, known as the Star Wars project, raise the following doubt: Prior to the enemy’s missile reaching the U.S. goal, Whether the laser and particle beam weapons, sensing and guidance devices, battle command stations, and other hardware necessary to intercept and destroy the defensive system are all available. However, they have seriously neglected a factor that may be the biggest obstacle to the effective defense of large-scale nuclear missile attacks.