These four examples leave us with two important open questions regarding the Kantian test. First, how should we assess the test’s importance if the level of generality at which the maxim of an action should be phrased cannot be normatively fixed? As we have illustrated above, the lower the level of generality at which a maxim is phrased, the higher the risk that its publicity would be self-frustrating, and vice versa (Luban 1996: 189–191). No doubt, the test would be over-exclusive if we were forced to phrase our maxims at a very low level of generality. This is clear when we think about keeping secret the date of a police intervention to trap criminals or the location of a stock of weapons in times of peace. Kant himself never suggests that all secret actions should be ruled out by his test. The problem is that, as long as we do not have any indication as to the appropriate level of generality at which an action’s maxim should be tested, the opposite risk of under-exclusiveness becomes hard to avoid as our four examples above illustrate.