The Pentagon's ambitious plan to ring Guam with a state-of-the-art missile defense system is running into fundamental obstacles that could delay or disrupt the project's completion, according to a new Government Accountability Office report. GAO, in a report published May 22 , found while the Defense Department has made structural and organizational progress in launching the Guam Defense System (GDS) -- a multibillion-dollar effort intended to provide 360-degree defense against Chinese missile threats -- it still lacks the most basic...