; and (E) in paragraph (4), by striking this subsection and inserting this section ; (3) by striking subsection (c); (4) by inserting after subsection (b) the following: (c) Technology In carrying out this section, the Secretary of Homeland Security shall deploy along the United States border the most practical and effective technology available for achieving situational awareness and operational control of the border. ; and (5) by adding at the end the following: (e) Definitions In this section: (1) Advanced unattended surveillance sensors The term advanced unattended surveillance sensors means sensors that utilize an onboard computer to analyze detections in an effort to discern between vehicles, humans, and animals, and ultimately filter false positives prior to transmission. (2) High traffic areas The term high traffic areas means areas in the vicinity of the United States border that— (A) are within the responsibility of U.S. Customs and Border Protection; and (B) have significant unlawful cross-border activity, as determined by the Secretary of Homeland Security. (3) Operational control The term operational control has the meaning given such term in section 2(b) of the Secure Fence Act of 2006 ( Public Law 109–367 ; 8 U.S.C. 1701 note). (4) Physical barriers The term physical barriers includes reinforced fencing, the border barrier system, and levee walls. (5) Situational awareness The term situational awareness has the meaning given such term in section 1092(a)(7) of the National Defense Authorization Act for Fiscal Year 2017 ( Public Law 114–328 ; 6 U.S.C. 223(a)(7) ). (6) Tactical infrastructure The term tactical infrastructure includes boat ramps, access gates, checkpoints, lighting, and roads. (7) Technology The term technology means border surveillance and detection technology, including— (A) tower-based surveillance technology; (B) deployable, lighter-than-air ground surveillance equipment; (C) Vehicle and Dismount Exploitation Radars (VADER)