 Conservationists sued the TVA to stop construction, arguing that the dam would likely destroy the snail darters population ecosystem. Well, what we learned as well is how to reroute systems and to build water regulatory systems, because then you end up having increased flooding in other places if you don't build those systems with climate change. What are we going to do if the climate continues to change, as some believe it will? We're going to have to do more mitigations.