In advanced technological societies there is growing concern about the prospect of protracted deaths marked by incapacitation, intolerable pain and indignity, and invasion by machines and tubing. Life prolongation for critically ill cancer patients in the United States, for example, literally costs a fortune for very little benefit, typically from $82,845 to $189,339 for an additional year of life. Those who return home after major interventions live on average only 3 more months; the others live out their days in a hospital intensive care unit.