It's like trying to use a hammer to screw some bolts. The priority should be sustainable development. We have enough water, just not great usage. The water infrastructure we have today is aged and needs to expand to allow for the population growth the country has seen. On top of that, we are expanding cities in parts of the country where water is scarce. We are growing water intensive crops in parts of the country that does not have water for it. We are also mismanaging the largest watershed in the country: the Missisippi. Just focus on these problems than creating other problems with desalination.