What should pilots be informed when they insist on landing on a closed runway?

When pilots insist on landing on a closed runway, the most appropriate response is to inform them that they may land at their own risk. This indicates that while they may proceed with the landing, they should be aware of the dangers and potential consequences associated with that decision. Closed runways may have various hazards such as obstructions, maintenance equipment, or other aircraft, and the responsibility for any incident that might occur during the landing process falls on the pilot.

This approach acknowledges the pilot's authority but also emphasizes the serious nature of the situation. Pilots are expected to prioritize safety and adhere to standard operating procedures, which include not landing on closed runways. By providing this information, air traffic control ensures that pilots are making an informed decision rather than simply ignoring safety protocols.