(Editor's Note: This article has been corrected to state the Pentagon is seeking to shift billions of dollars from overhead to high-priority programs in the coming years.) NATIONAL HARBOR, MD -- As it searches for efficiencies, the Air Force could save millions of dollars each year if the Pentagon held another round of base closures, the top service commander in Europe said today. "I think we really need to look at the real estate question again; I don’t think...