The Defense Department plans next month to conduct the second of two major technical reviews for the Next Generation Interceptor competition, assessing Northrop Grumman's design and select components for a homeland defense guided-missile prototype after completing a similar review in October of the same for Lockheed Martin. The Missile Defense Agency plans a preliminary design review of Northrop Grumman’s NGI proposal -- the company is partnered with Raytheon for the estimated $17 billion contest -- in January, according to a...