OK, if you look at the bottom of the article this thread links to, Krivit has a series of links on:
Recommended Reading: Distinction Between LENR and “Cold Fusion”
(Note that this distinction was being made PRIOR to the Rossi E-cat unveiling, based on the dates of most of the links.)
Most of the older stuff focuses on possible ways to accomplish "fusion". The theory here doesn't involve "fusion" ~ so, if I understand what NASA, et al, are doing, is focusing on the Weak Force theory to the exclusion of the nonproductive "fusion" theory.
That means it's worthwhile catching up on reading the older stuff that conforms to the new dichotomy.