Through a database, I’ve been matched to a stranger who needs a kidney. I would like to donate one of my kidneys and save a life. My wife is very upset that I am giving up so much for someone I have never met and will probably never meet and won’t have a kidney to donate if a family member needs one. I have tried to get everyone I can think of to talk to her, but she hasn’t changed her mind. She says she will divorce me if I do this. What is the right thing to do?