cicerone imposter wrote:If Terri is PVS (Permanent Vegetative State), she is brain dead....
First of all, I believe there is some disagreement about whether she is PVS. Secondly, your own article says that there is some brain activity. Therefore, although she may or may not be partially brain dead, she is not just plain brain dead. It would be instructive to know the degree and nature of the of activity in her brain. There are some claims that she reacts purposefully to those around her - even with emotion.
Even if it could be shown that she is unaware of her existence, the most I would agree with would be withdrawal of life support, but she is not on life support. I would still not feel it was proper to deny her food and water unless it could be shown that she was both unaware of her own existence and incapable of experiencing pain, and, even then, it would not be my choice of killing methods.