In politics, they say you want your people all peeing out of the tent rather than into it. In this context, there is a case to be made for assigning Elon Musk a new task to keep his mind off the budget and keep him focused and on point. Here is the assignment. Give him a contract to develop the desalination technology that will increase the habitable size of the USA by one-third and double the habitable size of the Earth. This can be achieved by collapsing the cost of desalinating seawater to roughly $ 200 per acre-foot. (That would...