What message can be taken from this decision, or nondecision? It could mean that the court thinks banning this type of firearm is permissible. It could mean most of the justices aren't sure and prefer not to address the question just yet, preferring to let lower courts wrestle with it for a while. But in either case, a law that has strong popular support in national polls, as well as sufficient support in Highland Park to be enacted, will be left in place.