I think that you have that backwards. It's the laser driven inertial confinement fusion approach that is useful for weapons insights. The very low density and s

I think that you have that backwards. It's the laser driven inertial confinement fusion approach that is useful for weapons insights. The very low density and slow kinetics of fusion in a tokamak are much less like weapon fusion reactions. Lawrence Livermore -- a nuclear weapons lab -- has studied inertial confinement fusion for decades. They don't have a tokamak. https://en.wikipedia.org/wiki/National_Ignition_Facility https://en.wikipedia.org/wiki/National_Ignition_Facility