Damn if only we had some way to you know turn off electricity to a device. A switch of some sort.
I already pointed this out in the thread, scroll down. The idea of a kill switch makes no sense. If the decision is made that some tech is dangerous it will be made by the owner or the government. In either case it will be a political/legal decision not a technical one. And you don't need a kill switch for something that someone actively needs to pump resources into. All you need to do is turn it off.