Final answer:
Physical security measures are the security controls impacting the physical world, including fences, locks, and alarms, and are part of a broader national security strategy.
Step-by-step explanation:
The blanks in the question '____________ are security controls that impact the physical world: fences, perimeter lighting, locks, fire suppression systems, and burglar alarms' can be filled by the term 'physical security measures'. Physical security measures are crucial for protecting assets from physical threats such as theft, vandalism, and natural disasters. They represent one aspect of a comprehensive security strategy that also includes economic security, energy security, and environmental security.
The effectiveness of these security controls is not solely determined by individual actions but is significantly influenced by consensus amongst community members and can entail large-scale value shifts. These controls play a vital role in ensuring national security and include a variety of approaches from the political domain, such as diplomacy and negotiation, to prevent and manage threats to a nation's stability.
Well-known examples of physical security measures include airport security gates, which have features such as metal detection and height indication for detected objects, as depicted in Figure 14.9. These controls are essential in safeguarding not just the individual spaces where they are implemented, but the broader social order and, by extension, national security.