What is the theme in Cadillac Desert: The American West and Its Disappearing Water by Marc Reisner?

The American dream is another theme in the story. Through his examination of the history of the West and its water, Reisner deconstructs the American Dream by pointing out what is wrong with American mythology when applied to the development of the West. In the political creation of the Dream, the media plays an important part: Reisner reveals the ways in which public opinion was shaped and manipulated to attract settlers to the arid West. For example, the newspapers carried editorials and accounts bordering on the fantastic. The papers proclaimed the new frontier a paradise for farmers; some even "promptly published a map of Desert that contained an inset map of Palestine ('The Promised Land!'), calling attention to their 'striking similarity."'