I expect this report is exaggerated or confused. NASA is not charged with authority to devise a program to make cold fusion "the main energy source for the world." That is far beyond their mandate. Heck, they don't even have rockets anymore.
I wonder if it was Rossi who claimed that NASA is doing this. It is a little unclear from this report who said what. In this report, Rossi's statements about some technical details differ substantially with the statements made by Defkalion on their web site and web-site forum. For example, Rossi claims there are 300 cells in a 1 MW Defkalion Hyperion reactor. Defkalion says there are 100 cells in a 3 MW prototype. I think Rossi and the people at Defkalion should sit down and review the designs, and they should publish accurate information in agreement from both sides. - Jed