The reason is to make a decision about the level of sufficiency is a necessity considering the relevant factors, as well as take into consideration the effects that are expected to arise from their actions carefully.
The realistic means to decide on the level of self-sufficiency, it must be rationally based on the relevant factors and taking into account the effects are expected to result from the action carefully.
The rational decision making about the level of protection that will be possible with reason by considering the related factors and realize the anticipated results of actions. Carefully