Which action is considered unauthorized concerning nuclear weapons?

Altering weapon settings is considered unauthorized because it directly impacts the integrity and safety of nuclear weapons. Such actions are strictly regulated due to the sensitive nature of nuclear arms and the potential consequences of any modifications. Unauthorized alterations could lead to unanticipated behavior of the weapon, posing severe risks not just to operational security but also to national and global safety.

In contrast, regular inspections, documenting maintenance logs, and conducting emergency drills are all part of standard procedural practices aimed at ensuring the safety, reliability, and security of nuclear weapons. These activities help maintain accountability, ensure adherence to safety protocols, and prepare personnel for emergency scenarios. By adhering to established procedures, the risks associated with nuclear arsenals are managed effectively, distinguishing them from unauthorized actions like altering weapon settings.