The Pentagon's annual assessment of the defense industrial base shares concerns with Capitol Hill about the future of solid-rocket motors, including the potential for competition and continued research and development in the face of the Ground-Based Strategic Deterrent program. The Defense Department worries that if Aerojet Rocketdyne is not part of the industry team chosen to build GBSD, the United States could have only one large solid-rocket motor supplier left -- Orbital ATK. However, both companies are working with GBSD...
