Special Report: Lessons Learned from Prior Reports on CBP's SBI and Acquisitions Related to Securing Our Border [open pdf - 1MB]
From the Highlights: "This is a Department of Homeland Security Office of the Inspector General (DHS OIG), special report regarding the U.S. Customs and Border Protection's (CBP) physical security of the southern border of the United States. This is the first in a series of reports about CBP's physical security of the southern border. This report describes lessons learned from prior DHS-OIG, Government Accountability Office, and Department reports on CBP's Secure Border Initiative (SBI), and other relevant CBP acquisitions related to securing our borders."
Department of Homeland Security, Office of Inspector General, Report No. OIG-17-70-SR
Department of Homeland Security Office of Inspector General: https://www.oig.dhs.gov/