What kind of "electrical danger" would suddenly appear?
At a certain point we have to admit we have been skinning these cats for over 100 years and the accepted method works pretty well.
If a new product comes along, sell it to us, don't force us to use it at the point of a government gun. After it has been thoroughly tested and proven it's worth, put it into the code. Then we might not have the current situation of 3 generations of AFCIs in the field, millions of the older styles, an unknown quantity of defective, recalled units that were never replaced with only the rarest newer ones meeting the current code. Bear in mind, the oldest generation AFCIs were being installed during the housing boom and the new ones finally hit the field about the time we stopped building houses.
