What concern is raised by visitors using cameras in restricted areas?

The concern raised by visitors using cameras in restricted areas primarily revolves around the potential for prohibited photography. Such actions can lead to the unauthorized capture of sensitive information, infrastructure details, or personnel activities that are meant to remain confidential. This practice poses significant risks to security, as it could facilitate espionage or leak sensitive data to adversaries.

In restricted areas, there are often strict regulations regarding what can be photographed due to the sensitive nature of the environment. Allowing photography in these zones can compromise security measures and could endanger national interests or individuals' safety. Thus, the potential for prohibited photography highlights the importance of maintaining strict control over who has access to certain areas and what they can do while there.