NATIONAL HARBOR, MD -- A top Northrop Grumman executive warned Monday that the Pentagon must deliver a clearer articulation of the problem it wants to solve with its "Golden Dome for America" missile defense initiative if it expects meaningful responses from industry. Speaking during a panel at the Sea-Air-Space symposium here, Chris Adams, vice president and general manager of Northrop Grumman’s strategic space systems division, said the current state of the Pentagon’s request for space-based missile defense capabilities lacks sufficient...