What unit is responsible for coordinating intelligence flow in each sector?

The Sector Intelligence Unit (SIU) is specifically designed to coordinate the flow of intelligence within each sector of the Border Patrol. This unit's primary function involves gathering, analyzing, and disseminating intelligence related to border security and operations. The SIU facilitates communication and collaboration among various teams and other law enforcement agencies to ensure a comprehensive and coordinated approach to managing border security threats.

In contrast, while the Office of Border Patrol-Intelligence (OBP-INT) may also engage in intelligence initiatives, its broader focus encompasses strategic intelligence matters across multiple sectors rather than the specific coordination role that the SIU plays at the sector level. The Border Surveillance Unit (BSU) primarily focuses on operational surveillance tasks and may contribute to intelligence efforts but does not have the same level of responsibility for coordinating overall intelligence flow. The Intelligence Collection Agency (ICA) is involved in larger-scale intelligence collection efforts that extend beyond the localized needs of individual sectors. Thus, the SIU's specialized mission centralizes the coordination of intelligence flow specifically within each sector, making it the correct answer.