Rear Adm. Gregory Harris said the "family of systems" in the Next-Generation Air Dominance Program will involve a combination of manned and unmanned systems, with the goal "over time" of getting to a 60-40 ratio in favor of unmanned systems. The director of the air warfare division in the office of the chief of naval operations said at a Navy League event yesterday the service will be working "closely" with NGAD, along with the Air Force . One important decision...