U.S. Mail comprises nearly 50% of the world’s total mail volume, and a significant amount of that mail is sent to or from countries around the globe. Global Security and Investigations (GSI) is responsible for securing U.S. Mail transiting between foreign postal systems, protecting postal revenues generated by international business development, and ensuring justice is not hindered by national borders. Working with international postal administrations and law enforcement entities, GSI strives to improve security of the mail worldwide and protect society from criminal enterprises that use the mail to further their schemes. Supports and enhances United States Postal Service efforts in providing an efficient, reliable, safe, and secure international mail service.