I doubt that there is anyone reading this who doesn't also read Mark's blog. But, in the unlikely event that that is the case, there are two things you must do:
1) You must read the entry on Mark's website titled The Wrong Questions
2) You must read this essay (there is also a link to this on Mark's site) titled Thoughts on: Terri Schiavo and our Moral Confusion
Okay... make that 3 things you must do...
3) You must also read this article titled How Liberalism Failed Terri Schiavo