the Director of the Missile Defense Agency shall submit to the congressional defense committees a report on increasing the capacity of the ground-based midcourse defense element of the ballistic missile defense system. (2) Contents The report required by paragraph (1) shall include the following: (A) An identification of potential sites—new or existing—to allow for the increase of up to 100 ground-based interceptors. (B) An analysis of the strategic, operational, tactical, and cost benefits of each site. (C) A description of any environmental, legal, or tactical challenges associated with each site. (D) A detailed description of the infrastructure needed and costs associated with each site. (E) A summary of any completed or outstanding environmental impact statements (EIS) on each site. (F) An operational evaluation and cost analysis of the deployment of transportable ground-based interceptors, including an identification of potential sites, including in the eastern United States and at Vandenberg Air Force Base, and an examination of any environmental, legal, or tactical challenges associated with such deployments, including to any sites identified in subparagraph (A). (G) A determination of the appropriate fleet mix of ground-based interceptor kill vehicles and boosters to maximize overall system effectiveness and increase its capacity and capability, including the costs and benefits of continued inclusion of capability enhancement II (CE–II) Block 1 interceptors after the fielding of the redesigned kill vehicle. (H) A description of the planned improvements to homeland ballistic missile defense sensor and discrimination capabilities and an assessment of the expected operational benefits of such improvements to homeland ballistic missile defense. (I) The benefit of supplementing ground-based midcourse defense elements with other, more distributed, elements, including both Aegis ships and Aegis Ashore installations with Standard Missile-3 Block IIA and other interceptors in Hawaii and at other locations for