The Missile Defense Agency is evaluating Lockheed Martin's proposal for an advanced hypersonic and ballistic missile interceptor, but other options will be considered before starting a program of record, possibly including the Navy's Standard Missile-6, according to the agency's top official. MDA Director Vice Adm. James Syring characterized the work his agency is doing on Lockheed's offer as "early evaluation of an industry concept" during a Feb. 2 press briefing at the Pentagon. The company has proposed developing a new...