Suppose that in an emergency evacuation of a hospital after a flood, not all of the patients can make it out alive. You are the doctor faced with the choice between abandoning these patients to die alone and in pain, or injecting them with a lethal dose of drugs, without consent, so that they die peacefully. Perhaps no one will be able to blame you whatever you decide, but, whichever action you choose, you will remain burdened by guilt.

What happens, in cases like this, when, no matter what you do, you are destined for moral failure? What happens when there is no available means of doing...