Zombies are big business, in more ways than one. Zombie books, movies, costumes, make-up, computer games, and more are probably worth billions to our economy, not to mention the value of extra sales of axes, chainsaws, and shotguns to people who never hunt or cut down trees. But not all zombies are fictional, and some are potentially really dangerous – at least to our pocketbooks and environment. These include zombie water projects: large, costly water projects that are proposed, killed for one reason or another, and are brought back to life, even if the project itself is socially, politically, economically, and environmentally unjustified.
http://www.forbes.com/sites/petergleick/2011/12/07/zombie-water-projects-just-when-you-thought-they-were-really-dead/