Which level threats include enemy agents and terrorists?

• A. Level 2
• B. Level 1
• C. Level 3
• D. Level 4

Answer: (B)

Threat levels organize security risk by both source and scale. The first level focuses on human adversaries who might try to slip into the protected area or disrupt operations—things like enemy agents and terrorists. These threats are carried out by individuals or small groups with intentional plans, often relying on deception or low-profile methods. Because the risk hinges on person-to-person actions, the protective approach emphasizes strict access control, identity verification, surveillance for suspicious behavior, and rapid incident response. This focus makes the first level the best fit for threats from enemy agents and terrorists, since it targets the kind of risk posed by human operatives in close or transition zones. Higher levels would address larger-scale or different threat domains, but the scenario described aligns with the emphasis of the first level.