A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) has established a program known as U.S. Visitor and Immigrant Status Indicator Technology (US-VISIT) to collect, maintain, and share information, including biometric identifiers, on certain foreign nationals who travel to the United States. By congressional mandate, DHS is to develop and submit an expenditure plan for US-VISIT that satisfies certain conditions, including being reviewed by GAO. GAO reviewed the plan to (1) determine if the plan satisfied these conditions, (2) follow up on certain recommendations related to the program, and (3) provide any other observations. To address the mandate, GAO assessed plans and related documentation against federal guidelines and industry standards and interviewed the appropriate DHS officials."

This Final Synthesis Report summarizes a four-year program to characterize and monitor carbonate mounds on the Mississippi/Alabama outer continental shelf.