As the Air Force rewrites requirements for the Next Generation Air Dominance platform, Northrop Grumman is "monitoring" the program and may jump back into the competition, the company's chief executive said today. “If they determine there will be a material change to the program, we would go back and re-evaluate just as we would any new opportunity whether we think that it is a program that we’re well-differentiated to perform, whether we view the business case as one that makes...