Diplomatic Security special agents, assigned to U.S. diplomatic missions overseas as regional security officers (RSOs), serve as the personal advisor to the ambassador or chief of mission on all security issues and coordinate all aspects of a mission’s security program. They develop and implement effective security programs to protect our employees from terrorist, criminal, and technical attack both at work and at home. RSOs receive valuable assistance in this effort from other Diplomatic Security personnel, Marine Security Guards, U.S. Navy Seabees, local and cleared American guards, local investigators, and security engineering officers, and host government officials. In addition, RSOs provide unclassified security briefings and other professional security advice to U.S. business executives overseas through the Overseas Security Advisory Council (OSAC).
RSOs serve as the primary liaison with foreign police and security services overseas in an effort to obtain support for U.S. law enforcement initiatives and investigations.
Regional Security Office