Heather is part of a four-person mining expedition. There is a cave-in and the four of them are trapped in the mine. A rock has crushed the legs of one of her crew members and he will die without medical attention. She’s established radio contact with the rescue team and learned it will be 36 hours before the first drill can reach the space she is trapped in. She is able to calculate that this space has just enough oxygen for three people to survive for 36 hours, but definitely not enough for four people. The only way to save the other crew members is to refuse medical aid to the injured crew member so that there will be just enough oxygen for the rest of the crew to survive. Should Heather allow the injured crew member to die in order to save the lives of the remaining crew members?