The Pre-historic Sahara Desert was vibrant, even lush. Plant life was abundant; it had numerous lakes, including a megalake rivaling a Great Lake, a lake which covered 42,000 square miles.   Then a megadrought occurred, and the people of the Sahara were forced to migrate east, to a fabled river. They found that river, the Nile, and established one of the world’s first civilizations.    There are no untapped  fabled  rivers for Americans; in the 21st Century, Americans, especially of the West,  will either conserve water, in a major way, or die of thirst, or kill for water, the DON DIVINO.  The Drought, the megadrought, in the American Southwest, is so bad, that the water intake valves of Lake Mead, not seen since they became operational, have been exposed, and no longer are functional.   “Lake Mead plummets to unprecedented low, exposing original 1971 water intake valve The original intake is no longer in use since it cannot draw water. ...