Final answer:
True, everyone on an installation has shared responsibility for security. All individuals play a crucial role in maintaining a secure and safe environment through active participation in security measures and vigilance.
Step-by-step explanation:
True, everyone on an installation has shared responsibility for security. In the context of anti-terrorism scenario training, this means that all individuals present at the installation, regardless of their specific roles or responsibilities, play a crucial role in maintaining a secure and safe environment.
For example, if someone notices any suspicious activity or behavior, they should immediately report it to the appropriate authorities. Additionally, individuals should follow security protocols, such as properly identifying themselves and using access control measures, to prevent unauthorized access to sensitive areas.