Alan
It didn't start with the bubble covers, go back to '70 or thereabouts and the requirement for full size ground wires in #12 & 10 romex, then lately this business of grounded switch yokes helped pay the likes of Leviton and Cooper and others to move their factories South & Far East and retool. How many switches have you EVER encountered that failed in service & made the yoke hot?Plleeeaase! Of course, the "industry representitatives" on the code making committees steer the document in the direction of more business for the industries. Been watching this process for 39 years, Klein should stick to making the finest pliers and screwdrivers in the world, Greenlee should stick to making the finest ko punches and accessories available, do we really need racing stripes on the handles of $ 26 dykes, we don't need multinational conglomerates lobbying for code regulations that place good wiring out of the reach of most homeowners. Just how many fires are arc fault breakers claiming to prevent?