an incredible amount of public money has gone into cold fusion
***Not nearly as much as for trying to control hot fusion, like Tokomak reactors. If one were to look at the number of MJoules produced/$dollar, LENR would tower over hot fusion.
It's kind of like the debate between using Adult Stem Cells and Embryonic Stem Cells. The ESCs get all the public money (to buy the researchers nice new offices and laboratories). The ASC researchers keep busy healing disease.
I have my doubts about Hot Fusion ever working in a controlled environment.