What is the role of the Defense Security Service (DSS)?

The Defense Security Service (DSS) plays a critical role in the protection of national security information, which is vital for maintaining the integrity and security of sensitive data within the Department of Defense (DoD). This responsibility includes overseeing the security measures in place for classified information and ensuring that proper protocols are followed in handling and safeguarding that information against espionage, unauthorized access, and other threats.

By focusing on the protection of national security information, DSS helps ensure that individuals and entities within the defense community are compliant with security regulations. This includes vetting personnel for security clearances, conducting investigations related to security incidents, and implementing security best practices. Their efforts are essential in fostering a secure environment where national security information is safeguarded appropriately, thereby supporting the overall mission and operations of the DoD.

In this context, options related to public relations, training programs for military personnel, or monitoring financial expenditures do not accurately reflect the fundamental role of DSS, which is specifically concentrated on information security and protection.