; (2) the differences (if any) in U.S. Customs and Border Protection border-crossing death data collection methodology across its sectors; (3) how U.S. Customs and Border Protection’s data and statistical analysis on trends in the numbers, locations, causes, and characteristics of border-crossing deaths compare to other sources of data on these deaths, including border county medical examiners and coroners and the Centers for Disease Control and Prevention; (4) how U.S. Customs and Border Protection measures the effectiveness of its programs to mitigate migrant deaths; and (5) the extent to which U.S. Customs and Border Protection engages Federal, State, local, and Tribal governments, foreign diplomatic and consular posts, and nongovernmental organizations— (A) to accurately identify deceased individuals; (B) to resolve cases involving unidentified remains; (C) to resolve cases involving unidentified persons; and (D) to share information on missing persons and unidentified remains, specifically with the National Missing and Unidentified Persons System (NamUs).