Some dilemmas of living wills

The question of care of terminally ill patients is, as we all know, fraught with difficulties which become more rather than less intense with new developments in medical systems. Once, doctors were not faced with the question of whether to keep someone alive when it was scarcely in their power to intervene in nature's course. Today, with new powers to keep people alive, the question arises, with ever greater urgency, when and whether those powers should be used.