Or in other words we need to include a lump of plutonium in our cold fusion reactors to generate sufficient neutrons and gamma radiation to enable a significantly high rate of reaction? Electron screening alone simply doesn't overcome the C-barrier we have to beam in high energy electrons, neutrons, gamma or deuterons to do what, generate a few watts of excess heat? That will still consume more power than it produces. Another solution would be to build another ITER out of palladium or titanium maybe around a fission reactor to provide extra neutrons?
Good idea! But doesn't allow cheap and modular energy sources to the world quite as confidently. Something like a spheromak around a simple solid state or homogenous liquid state SMR with one or two moving parts.