Why would anyone think this is a good idea? Whose business is it who owns a firearm. All this serves to do is provide a shopping list for criminals. They know which houses are armed and which houses are not. They know which houses to wait until the owner leaves which will have another weapon for them, and which houses are unarmed to invade after stealing the weapon. It’s a shopping list for criminals. Not only that though, it provides a starting place for bigots to find and harass gun owners.