What is the procedure if a security alert is detected?

In the event that a security alert is detected, the appropriate procedure involves implementing enhanced screening measures and potentially rerouting passengers. This approach is designed to ensure safety while minimizing disruption. Enhanced screening allows security personnel to conduct thorough checks on passengers and their belongings, identifying any potential threats without causing unnecessary panic or chaos. Rerouting may also be necessary to mitigate risks, ensuring that passengers can safely continue their journey without encountering a compromised situation.

The other options present procedures that are not generally standard in response to a security alert. Immediate evacuation of the terminal can lead to confusion and may not be necessary depending on the nature of the alert. Ordering passengers to remain seated could disrupt security protocols and allow threats to go unchecked. Lastly, requiring additional identification without a clear context may not effectively address the underlying security concern and could hinder an efficient response. Therefore, the focus on enhanced screening and possible rerouting strikes the right balance between maintaining security and ensuring passenger safety.