Every state in America has an end of life directive or durable power of attorney provision. For the peace of mind of your children and your spouse as well as the comfort of knowing the government won't make these decisions, it's a very popular thing. Just not everybody's aware of it.
I think there ought to be some serious discussion by smart people, really smart people, about whether or not proliferation of things like The Smoking Gun and TMZ and YouTube and the whole celebrity culture is healthy.