Also, the issue of the warm plantwater being dumped into the surrounding sea or rivers could be very simply solved if we recycled that water and used it for heating elsewhere. While that might sound dangerous on paper, it's worth to remember that the particular water being dumped haven't been anywhere near the reactor core. It's the water that was used in the steam turbines, and it's just as safe as any old water in the area. A hypothetical accident would have to be pretty flippin' odd in order to irradiate that particular water circuit.