In relation to airport operations, what are "unattended bags" commonly associated with?

Unattended bags are primarily associated with safety and security concerns within airport operations. When a bag is left unattended, it may pose a potential risk, as it could be used to conceal dangerous items or substances. Airports have stringent security protocols to manage such situations, often leading to immediate investigations and possible evacuations to ensure the safety of passengers and staff.

The presence of an unattended bag typically triggers alarms and prompts security personnel to respond quickly, emphasizing the importance of vigilance in maintaining a secure environment for everyone involved. This proactive approach is crucial in mitigating threats and ensuring that safety protocols are upheld.

While other options like passenger convenience, operational efficiency, and flight delays may have implications in various aspects of airport management, they do not directly correlate with the immediate and pressing concerns linked to unattended bags.