This, finally, is the punch line of our two hundred years on the Great Plains: we trap out the beaver, . . . infect the Blackfeet and the Hidatsa and the Assiniboin, . . . suck up the buffalo, bones and all; kill off nations of elk and wolves and cranes and prairie chickens and prairie dogs; dig up the gold and rebury it in vaults someplace else; ruin the Sioux and Cheyenne and Arapaho and Crow and Kiowa and Comanche; kill Crazy Horse, kill Sitting Bull; . . . plow the topsoil until it blows to the ocean; ship out the wheat, ship out the cattle; dig up the earth itself and burn it in power plants . . . ; dismiss the small farmers, empty the little towns; drill the oil and the natural gas and pipe it away; dry up the rivers and the springs, deep-drill for irrigation water as the aquifer retreats. And in return we condense unimaginable amounts of treasure into weapons buried beneath the land that so much treasure came from — weapons for which our best hope might be that we will someday take them apart and throw them away, and for which our next-best hope certainly is that they remain humming away under the prairie, absorbing fear and maintenance, unused, forever.