Yes, they've been touting these for 15 years now and still don't have any plans for a prototype. The nuclear industry always seems to have some game-changing innovation just around the corner. I'm all for aggressively funding the research, but these new designs are all hypothetical, not existing solutions.
The plans are made and ready to go as soon as a president who isn't loyal to the fossil fuel industry is in office. This technology could literally save our species and the planet and it got spiked to protect dinosaur industries. You can watch the documentary "Inside Bill's Brain" on Netflix for more information, specifically episode 3.
