Procurement Armed Forces Costs Weapons systems Airplanes, Military Appropriations and expenditures Auditing Data processing Equipment Evaluation Forecasting Management Methodology Navy-yards and naval stations -- United States Nuclear submarines -- United States -- Design and construction -- 21st century Public contracts Risk assessment Shipbuilding industry -- Employees -- United States -- 21st century Systems integration United States -- Armed Forces -- Weapons systems -- Costs United States. -- Dept. of Defense -- Procurement -- Cost control