How will a land mine or booby trap, emplaced upon my own property, "violate an innocent persons right of quiet enjoyment of their property"? Consider that I live alone and have no pets, and also that the property is prominently posted "No Tresspasing".
Human intervention is required in order for any weapon to be considered 'discriminating', since the discrimination must come from someone with the capability to make that discriminative decision. Therefore -- since these two weapons lack human intervention -- discrimination is impossible and they fall into the final catagory of weaponry.
Well, suppose the police or fire rescue had to come help you, and accidentally got blowed up real good?