Those reactors are small (compared to those exploited by the electronuclear industry), fully opaque (not monitored by the public, enabling various tricks and mi

Those reactors are small (compared to those exploited by the electronuclear industry), fully opaque (not monitored by the public, enabling various tricks and mishaps hiding), associated budgets are huge (totally out of the range of industrial civilian equipment), some of the main challenges (cooling down the reactor) is way more difficult (they are embarked into ships/subs, which are surrounded by vast amounts of water)...