The Deuterium/Palladium is well known. Interesting but beyond that ????.
It's surprising how much in the dark we are about how it works and how to control it. At the seminar, they call on "nature having a good day" and "muons from space" required to begin the reaction.
Scaling these things up might be way beyond interesting.
My thoughts on the matter are that the North Koreans are pretty much ahead of everybody in using this previously unstudied phenomenon to come up with a bomb ~ not a really big nuke but one that'd set your teeth on edge if it went off in your neighborhood.
Eventually they'll figure out how to use it to produce useful energy.