What role does the Secretary of Defense play in the NISP?

The Secretary of Defense plays a crucial role in the National Industrial Security Program (NISP) by overseeing the implementation of the program. This responsibility includes establishing policies, providing guidance, and ensuring that security measures are adhered to within the defense industrial base. The Secretary's oversight helps to maintain the integrity of sensitive government information and ensures that industrial facilities are compliant with national security regulations.

In this context, the Secretary of Defense is involved at a high-level strategic position rather than executing day-to-day operations or functions specific to individual contracts or audits, which distinguishes this role from the other choices. The focus of their role is on ensuring that the overarching framework for security is effectively executed, which is vital for maintaining national security.