There is one thing good to remember that we are not living nowhere near laissez-faire capitalism. If any company would be exposed in any attempt to hinder the development of viable cold fusion technology, it would considered the worst economic crime in the history. And it would lead into huge monetary penalties and compensations.
E.g. it would be considered as stock exchange rate manipulation, that is already one of the most severely punished crimes. This kind of suppression would also be impossible to keep inside a company, but information would very easily leak out from the company, because the one who is leaking the suppressed information, would be treated as international hero in the media. There is no possible compensation that would benefit any human for suppressing the information. Especially, because those who are doing the suppression would know that 150 years in Prison is something what to expect for the punishment (yes, I think that US penalties are perhaps too harsh!). We must remember that the economic value of the knowledge on cold fusion technology is billions of dollars, because oil prices are based on future exceptions on oil demand in the world where there are not expected major breakthroughs in energy technology. —Jouni