There's a bear in the woods. For some people the bear is easy to see. Other's don't see it at all. Some people say the bear is tame, others say it's vicious and dangerous. Since no one can really be sure who's right, isn't it smart to be as strong as the bear? If there is a bear?
Yes, yes it is. Because they're both out of their minds. How do you argue with the logic of "I might be imagining a vicious bear, so that justifies rapid military expansion"?