(E) Increased flight hours for aerial detection, interdiction, and monitoring operations capability. (F) Man-portable unmanned aerial vehicles. (G) Ultralight aircraft detection capabilities. (H) Modernized port of entry surveillance capabilities. (I) Increased maritime interdiction capabilities. (18) Swanton sector For the Swanton sector, the following: (A) Mobile vehicle-mounted and man-portable surveillance capabilities. (B) Advanced unattended surveillance sensors. (C) Improved agent communications systems. (D) Increased flight hours for aerial detection, interdiction, and monitoring operations capability. (E) Man-portable unmanned aerial vehicles. (F) Ultralight aircraft detection capabilities. (G) Modernized port of entry surveillance capabilities. (19) Houlton sector For the Houlton sector, the following: (A) Mobile vehicle-mounted and man-portable surveillance capabilities. (B) Advanced unattended surveillance sensors. (C) Improved agent communications systems. (D) Increased flight hours for aerial detection, interdiction, and monitoring operations capability. (E) Man-portable unmanned aerial vehicles. (F) Ultralight aircraft detection capabilities. (G) Modernized port of entry surveillance capabilities. (b) Reimbursement related to the Lower Rio Grande Valley Flood Control Project The International Boundary and Water Commission is authorized to reimburse State and local governments for any expenses incurred before, on, or after the date of the enactment of this Act by such governments in designing, constructing, and rehabilitating the Lower Rio Grande Valley Flood Control Project of the Commission. (c) Tactical flexibility (1) Southern and northern land borders The Secretary of Homeland Security may alter the capability deployment referred to in this section if the Secretary determines, after notifying the Committee on Homeland Security and Governmental Affairs of the Senate and the Committee on Homeland Security of the House of Representatives , that such alteration is required to enhance situational