Control/operation of nuclear plants has already been a target of brinksmanship. And while your point about dams is a good one, disasters like a dam collapse (which just happened as a result of the Turkey/Syria earthquake, and is adding to the already catastrophic devastation), are more localized in time than nuclear incidents which present long-term environmental challenges. Sometime I'd like to visit Chernobyl, but I'm not sure I'd live there.