New Brunswick is the only Canadian province, apart from Ontario, with an operating power reactor - they have one Candu, Point Lepreau. That's also where the provincial government is sponsoring two fast reactor start-ups. One is designing the ARC reactor - sodium cooled, metal fuel, based on Idaho's EBR 2. The other is Moltex, the brainchild of a British chemist, using spent fuel actinides dissolved in molten sodium chloride, with the fuel contained in steel rods analogous to the fuel elements of a LWR. The fuel elements are immersed in a pumped fluoride heat transfer salt. Fission gases are held in the top of the fuel rods long enough for shorter half-life elements to transmute, before release into the cover gas. They claim sacrificial base metals in the rods would reduce corrosion to negligible levels.
Not sure how either project is going.

...finish up his Ph.D in about 2 years. His plan is to do a post-doc or two with the goal of becoming an academic. Who knows though whether the country and the national labs will be intact in two years, so I'm trying to make him aware of foreign countries where he can work. He speaks French. I have a high level contact with someone in the industry there, so there's that. Moltex looks interesting though, and the Canadian presence is intriguing.

I'm a fuels guy; he's a materials guy.

I kind of understand why chlorides are popular, but I'm not a fan of them. I much prefer fluoride salts for reprocessing. It does seem to me that this idea is getting some attention