No nuclear power plant works like that. Nuclear power plants have an internal circuit that touches the reactor, which passes its heat to water from a nearby lake or river in a heat exchanger. Radioactive material exiting the reactor in cooling water is physically impossible. You're talking about a military reactor designed in 1944. How is a terrorist organization going to sabotage a nuclear power plant? Sure, there would be problems if they were able to. But they can't. --Stewart Peterson