The Bureau of Reclamation's
controversial decision to develop the Orme Dam in Arizona forms the
backdrop of this book. Espeland uses the Bureau's long and bitter
dispute with the Yavapai Indians, who fought being driven from their
ancestral home, to examine both the underpinnings of rationality and
its link to commensuration. She explains how rationality became the
terrain for struggle over powerful material and ideal interests, and
how, once the conflict was cast in these terms, the interests and
identities of participants were renegotiated.