http://www.vete :)ranstoday.com/2016/05/31/the-problem-with-cold-fusion-and-how-small-can-a-nuclear-reaction-be/
The problem with cold fusion is that all metals will absorb hydrogen, some much better than others. Uranium and other fissile materials will absorb it uncontrollably and at some point it will explode with a force greater than what a molecular explosive of the same mass will produce.
This is the problem with cold fusion; runaway explosive force that cannot be stopped. It is not a matter of if but when.
At first you get a simple catalytic reaction but once it reaches a critical threshold it will explode; you cannot stop the reaction from occurring and it can happen with any metal not just fissile material.
