@rayckeith MSWR Thorium reactors have a lot of "this fixes plutonium proliferation!!!" astroturf PR backing them, but it turns out you can breed U-233 in them, a lesser-known fissile isotope of Uranium that can be used to make bombs.
So let's build lots of small modular reactors to decarbonize shipping (yay!) and sail them past pirates or rogue states who can seize and repurpose them as A-bomb farms (boo!).