How far would you go to sustain the life of someone you love or your own? When the moment comes, and you're confronted with the prospect of 'pulling the plug', do you know how you'll respond? Unfounded rumors of federal 'death panels' grabbed headlines last summer, but the real decisions of how we die, the questions that most of us prefer to put off, are being made quietly behind closed doors, increasingly on the floors of America's intensive care...