Lockheed Martin is still building a new missile defense system, but events may overtake it. Good news for Lockheed Martin (LMT -0.01%) investors! Last week, the Pentagon announced that it has awarded the defense giant $977.5 million to continue development of Next-Generation Overhead Persistent Infrared (Next-Gen OPIR) satellites for early warning and tracking of intercontinental ballistic missile (ICBM) and theater ballistic missile launches. Bad news for Lockheed Martin investors: Lockheed won't be buildi ...