Many of Teller's concerns in that article were what promted me to throw away my nuclear power training from the Navy and stay out of that profession. When I got out, 3 Mile Island hadn't happened yet but I knew it was simply a matter of time before human beings screwed up good engineering.

On our submarime, I had witnessed our pressurizer nearly emptied during operations, a situation that could've resulted in a meltdown if the guage hadn't unstuck and allowed us to catch the problem. I saw us inadvertently dump nuclear waste into harbors. I watched nuclear workers on their rounds "radio" their valve lineup checklists so they could get off earlier. I knew that sooner or later, no matter how many safety features were added to the equipment, that human nature would find ways of working around them.

Any truly safe system had to require that no matter what stupid things humans did, that worst case could not result in a meltdown of the core. Pressurized water reactors and control rod designs could never assure that. That was reinforced to us in our training at the prototype in Idaho. There we heard the story of the Army's first experimental reactor named SL-1 where a maintenance worker yanked a stuck control rod up from the top of the reactor. When it suddenly let go, and the reactor went instantly critical, the steam explosion pinned him to the ceiling with the rod. 2 other workers were killed as well.

Here's a link to the incident Link

Humans are always the crucial weak link in technology. Sounds like the Chinese have come up with a solution that renders there idiocy basically moot.