A report from the U.S. Government Accountability Office found that Border Patrol has been undercounting the actual number of migrant deaths in the U.S.-Mexico border region. (original link) For instance, Border Patrol in Arizona routinely reports finding roughly half as many remains as the Arizona OpenGIS Initiative for Deceased Migrants.
— Southwest Border: CBP Should Improve Data Collection, Reporting, and Evaluation for the Missing Migrant Program, GAO-22-105053 (Washington: U.S. Government Accountability Office, April 20, 2022) https://www.gao.gov/products/gao-22-105053.
— Ryan Devereaux, “The Border Patrol Is Systemically Failing to Count Migrant Deaths” (United States: May 9, 2022) https://theintercept.com/2022/05/09/border-patrol-migrant-deaths-gao/.