I don’t know if you have been looking at the news lately but North Korea and its inbred psychotic leader has repeatedly been threatening to nuke the United States and even publishing pictures of its “plans” to do so. Most policy experts are saying Kim Jong In is just solidifying his power… but what if the nutjob is serious?
In this case I kind of like a first strike policy. If someone is explicitly threatening you don’t ignore them; take action. Its well established that if someone is pointing a gun at you and making threats, you are perfectly within your right to self defense to pull out your own gun and kill them. A nuclear first strike might be a bad idea, but a conventional attack that decapitates their leadership seems wise.