So how dangerous can LENR be and is this why the security services are trying to subvert its development:
"In 1929, Walter Hernann Nernst (1864-1941), Nobel Laureate in Chemistry in 1920, remarked on experiments on hydrogen
gas interaction with uranium metal in the Zeitschrift magazine: “Hydrogen will dissolve into cretin metals as if the metal was
acting like a dry sponge absorbing water.” If deuterium is dissolved in uranium metal beyond a critical threshold concentration, an interaction between the deuterium and uranium was expected.
If it is a form of deuteron disintegration, it becomes an avenue of energy release from the heavy metals without the need to reach a critical mass of the fissile elements.
Glow-ischarge experiments were conducted using Crookes-Geissler tubes filled with deuterium gas and uranium foils. These were precursors to the Farnsworth Fussier experiments attempting the electrostatic fusion of deuterium in the1960s. Niels Bohr suggested that this approach could lead to the production of small nuclear devices instead of the critical mass approach, which would be more suitable for large devices".
http://mragheb.com/NPRE 402 ME 405 Nuclear Power Engineering/German Nuclear Program.pdf