Originally Posted by patrickngo

Because KHG is Klingon, and Klingons make the study of war and conflict a cultural obsession, and part of any modern battlefield beyond the "Steel age" WWII equivalent, involves the presence of, and threat of, radiation. Where humans hid from their baser nature and denied War's influence and the consequences of conflict, the Klingons studied it, learned to guard against it, and spent a lot of time and effort determining exactly how to not only use the side-effects of conflict, but how to survive said use.