A key House panel wants the Defense Department to draw up options for improving currently fielded Ground-based Interceptors, forging a potential new program to both upgrade and expand the existing homeland ballistic missile defense fleet that could compete with the Pentagon's new plan for a "layered" homeland defense architecture. The House Armed Services strategic forces subcommittee, in its mark of the fiscal year 2021 defense policy bill , mandates the Pentagon prepare a report on the Ground-based Midcourse Defense system...