(D) Mobile vehicle-mounted and man-portable surveillance systems. (E) Deployable, lighter-than-air ground surveillance equipment. (F) A rapid reaction capability supported by aviation assets. (G) Man-portable surveillance capabilities. (6) Big bend sector For the Big Bend sector, the following: (A) Tower-based surveillance technology. (B) Deployable, lighter-than-air ground surveillance equipment. (C) Improved agent communications capabilities. (D) Ultralight aircraft detection capabilities. (E) Advanced unattended surveillance sensors. (F) A rapid reaction capability supported by aviation assets. (G) Mobile vehicle-mounted and man-portable surveillance capabilities. (H) Man-portable unmanned aerial vehicles. (7) Del rio sector For the Del Rio sector, the following: (A) Increased monitoring for cross-river dams, culverts, and footpaths. (B) Improved agent communications capabilities. (C) Improved maritime capabilities in the Amistad National Recreation Area. (D) Advanced unattended surveillance sensors. (E) A rapid reaction capability supported by aviation assets. (F) Mobile vehicle-mounted and man-portable surveillance capabilities. (G) Man-portable unmanned aerial vehicles. (8) Laredo sector For the Laredo sector, the following: (A) Maritime detection resources for the Falcon Lake region. (B) Increased flight hours for aerial detection, interdiction, and monitoring operations capability. (C) Increased monitoring for cross-river dams, culverts, and footpaths. (D) Ultralight aircraft detection capability. (E) Advanced unattended surveillance sensors. (F) A rapid reaction capability supported by aviation assets. (G) Man-portable unmanned aerial vehicles. (9) Rio grande valley sector For the Rio Grande Valley sector, the following: (A) Deployable, lighter-than-air ground surveillance equipment. (B) Increased flight hours for aerial detection, interdiction, and monitoring operations capability. (C) Ultralight aircraft detection capability. (D) Advanced unattended surveillance sensors. (E) Increased monitoring for