The three-letter agencies haven't changed their minds. They still think that every computer being insecure makes us all more secure, and they will and they have acted to create this situation. That's the difference between now and a century ago. The govt back then didn't feel it was in their interest for electricity to be fundamentally unsafe for consumers. Until the agencies genuinely reverse course, inventions to promote safety can't move forward. We'd have basic safety now, as you describe, had room been made for it. But instead, they played past the edge - way past the edge, and have no profound regrets about that that I've heard.