Apparently The American Society of Anesthesiologists is considering sanctions for members who participate in state-sponsored executions. (The jury is still out, apparently, on voluntary self-executions.) Since I oppose the death penalty myself, I am not unsympathetic to the two anesthesiologists in California who refused to participate in an execution there today, but the enforcement of this principle by the ASA by means of expulsion is interesting. The reasons given were that doctors ought not to voluntarily cause the deaths of healthy human beings.
That's what the Pro-Life movement has been arguing for over thirty years. I look forward to the expulsion of abortionists from the American Medical Association.