A good question for a Supreme Court Justice to ask the plaintiff, DC, would be, "Given that the US has stated that the common law right to keep and bear arms permits "reasonable regulation" of the right, what additional constraints on government, if any, were created by the ratification of the Second Amendment?"
Let's hear them explain that one-tenth of our Bill of Rights has no beneficial effect whatever toward protecting our rights. It's quite disheartening to think that there are Supreme Court Justices who would agree.
Actually, that question would best be asked of the defendant. The plaintiff brought the case.