A Tale of Humans In a Universe of Ubiquitous Alien Life Intelligence, it turns out, is rare--on planetary surfaces. It thrives everywhere else, from the Oort-cloud fringes of star systems to the magma furnaces beneath planetary crusts. And among the most powerful of the galaxy's intelligences, there are profound differences of opinion about how to deal with surface life-forms such as human beings. For, untold light years from Earth, the powers that...