I don't believe its practical. The technological idea is fabulous, but to cripple a country using it, a simple missle would eliminate it, and bring the energy matrix down. We can't go that direction with the money it would take to put it place, unless the WHOLE planet was on board with it.
Money the planet is spending on war machines would be better spent on energy and food and water collection technologies. I'm wondering why we aren't trying to collect rain water in the ultra rainy areas of the midwest and send it to the arrid areas of the country. Cisterns should be the biggest money investments around. If for nothing else than to filter rainwater for drinking water. Instead, we watch it drain off into the gulf. I really think we should follow the rain for the water supplies that are dwindling. It will be an issue. Sooner or later we'll have water collection infrastructure in place everywhere like we should also have solar and wind collection everywhere. Spend the money on it now, and it will pay us back big time in ten years. Build it out of the right materials and it will work for decades.
Maybe I'm just a stupid city boy 'from' Los Angeles and don't know anything of any use, but I'm thinking there is a way to turn this world effort around.
imo.
As little rain as we get here, I'm looking into recycling the little bit we get into gutter fed cicterns, as well as re-doing the sink and shower plumbing to recycle grey water for the yard.
Small effort, more return. less water bill. the soap will help break down the clay soil if I'm informed propery.