Letting and making death happen,withholding and withdrawing life-support: Morally irrelevant distinctions

The author argues that there is no morally relevant distinction between letting and making death happen, and between withholding and withdrawing life-support. There is a discussion of possible adverse consequences in believing that there are moral distinctions. And then he shows that acknowledging the absence of such a distinction does not necessarily imply any endorsement of active euthanasia.