https://files.gao.gov/reports/GAO-26-108437/index.html?_gl=1*m0ums8*_ga*MTE0MzYzMTA5MS4xNzc4NzAwNjIx*_ga_V393SNS3SR*czE3ODUyNTM5MDYkbzEzJGcwJHQxNzg1MjUzOTA2JGo2MCRsMCRoMA..
GAO-26-108437, SOUTHERN BORDER SECURITY: DOD Used Multiple Strategies to Fund Operations