Patrol sector: (1) An assessment of the most appropriate, practical, and cost effective means of defending the land borders of the United States against threats to security and illegal transit, including intelligence capacities, technology, equipment, personnel, and training needed to address security vulnerabilities. (2) An assessment of staffing needs for all border security functions, including an assessment of efforts to take into account asylum seekers, trafficking victims, unaccompanied children, and other vulnerable populations. (3) A description of the border security roles and missions of Federal, State, regional, local, and Tribal authorities, and recommendations regarding actions the Commissioner can carry out to improve coordination with such authorities to enable border security activities to be carried out in a more efficient and effective manner. (4) A description of ways to ensure that the free flow of travel and commerce is not diminished by efforts, activities, and programs aimed at securing the land borders of the United States. (5) An impact assessment of the loss of trade and commerce due to inadequate staffing at land ports of entry by U.S. Customs and Border Protection agents and officers. (b) Report on migrant deaths (1) CBP and ICE Not later than 180 days after the date of the enactment of this Act, the Commissioner of U.S. Customs and Border Protection and the Director of U.S. Immigration and Customs Enforcement shall jointly submit to the Comptroller General of the United States, the Committee on Homeland Security of the House of Representatives, and the Committee on Homeland Security and Governmental Affairs of the Senate a report relating to deaths occurring along the United States-Mexico border, including information on the following: (A) The number of documented migrant deaths. (B) A geographical breakdown of where such migrant deaths occur. (C) To the extent possible, the cause of death for each migrant. (D) The extent to which border technology, physical barriers, and enforcement