<p>The heartbreaking story of Terri Schiavo, the severely brain-damaged Florida woman who has been kept alive for more than a decade by a feeding tube her husband claims she would want removed, has captured the media's attention.</p>
<p>The significance of the Schiavo story, however, is not just her dramatic circumstances, but the ethical questions that surround the debate over using heroic measures to keep a brain-damaged/brain-dead person alive when that person has not left clear instructions.</p>