; and (6) invest in advanced technologies, such as boost-phase warning, tracking, and intercept. (c) Report (1) In general Not later than 180 days after the date of the enactment of this Act, the Director of the Missile Defense Agency shall submit to the congressional defense committees a report on ways the Missile Defense Agency can accelerate the construction of Missile Field 4 at Fort Greely, Alaska, as well as the deployment of 20 ground-based interceptors with Redesigned Kill Vehicles (RKV) at such missile field, by at least one year. (2) Contents The report required by paragraph (1) shall include the following: (A) A threat-based description of the benefits and risks of accelerating the construction and deployment referred to in paragraph (1). (B) A description of the technical and acquisition risks and potential effects on the reliability of the Redesigned Kill Vehicle if deployment is accelerated as described in paragraph (1). (C) A description of the cost implications of accelerating the construction and deployment referred to in paragraph (1). (D) A description of the effect such acceleration would have on the Redesigned Kill Vehicle flight test schedule and the overall Integrated Master Test Plan. (E) A description of the effect that the acceleration described in paragraph (1) would have on re-tipping currently deployed exo­at­mo­spher­ic kill vehicles with the Redesigned Kill Vehicle. (F) A description of how such acceleration would align with the deployment of the long range discrimination radar and the homeland defense radar-Hawaii. (G) A cost-benefit analysis and a feasibility assessment for construction of a fifth missile field at Fort Greely, Alaska. (3) Form The report required by paragraph (1) shall be submitted in unclassified form, but may include a classified annex. 3. Development and deployment of persistent space-based sensor architecture (a) Findings Congress makes the following findings: (1) The Missile Defense Agency currently operates the Space Tracking and Surveillance