Which physical security measure is NOT part of the strategy to protect against terrorist attacks?

The correct answer highlights that "Deflect" is not part of the strategy to protect against terrorist attacks. In physical security, the primary strategies involve measures that focus on deterring potential threats, delaying attempts to breach security, and detecting any unauthorized actions or individuals.

Deter refers to measures that discourage potential attackers through visible security presence, such as patrols or security cameras. Delay involves using barriers that slow down an attacker, giving time for a response from security forces. Detecting is about identifying threats in real-time through alarms or surveillance systems.

Deflection, while a term that may suggest redirecting an attack, is not specifically categorized within the primary physical security measures used for counter-terrorism strategies. The focus typically lies instead on those three core functions: deter, delay, and detect, which directly contribute to a comprehensive security posture against possible terrorist actions.