Which of the following is NOT considered a current threat to civil aviation?

Weather disruptions are not considered a current threat to civil aviation in the same context as cyber attacks, ranged weapons, and airport attacks. While weather can impact flight operations, including delays and cancellations, it is not an intentional act aimed at compromising security or safety in the same way as the other threats listed.

Cyber attacks represent a significant modern threat as they can compromise critical aviation systems, leading to potential safety hazards or data breaches. Ranged weapons pose a direct physical threat to aircraft and passengers, with the potential for tragic outcomes if not adequately controlled. Airport attacks also directly aim at disrupting or harming aviation operations and the safety of individuals traveling through airports.

In contrast, weather disruptions are natural phenomena and are considered a part of operational management in aviation rather than a malicious or intentional threat. While they may lead to operational challenges, they do not arise out of ill intent or actions aimed at harming aviation security. Thus, they are categorized differently and are not considered a "threat" in the same sense.