That whole effort was predicated on success of efforts to develop fission-free bombs. That never worked out, although the inertial confinement fusion program i

That whole effort was predicated on success of efforts to develop fission-free bombs. That never worked out, although the inertial confinement fusion program is in a way its descendant. The scale of ICF reactors shows why it didn't work out. A slight shame, since this might have made Project Pacer (exploding bombs in caverns to make energy) more feasible. There still would have been enormous tritium production/pollution.