Tanks can be owned and nukes are not arms. Ordnance would be a better definition. What point are you trying to make? That it is acceptable to put limits on the 2a? If so you may be on the wrong forum. The Brady campaign may have a forum more to your liking. Then again maybe I have misinterpreted what you're trying to conveyWording. You have the right to bear arms. Is a nuclear bomb an arm? Can I use it to BBQ every deer in the zone. If I am hunting deer with a tank and you say no, thats an infringement. If you say I cant own a nuclear device thats infringement. If you limit my household to what I can store in it regardless if there is a fire and the explosion would take out 5 houses near me, thats an infringement. Speed limits other than the need bring in revenue are put in place to keep a level of normality. Personally I dislike laws telling me what I can own. I do however see why they are there. You of course can ignore speed limits if you dont mind paying the price if you get caught.