Who Owns the Human Body?

“Smajdor starts by noting that pregnant women who have been declared brain-dead or in PVS have already been kept alive on life support until their babies can safely be delivered by c-section. She acknowledges that someone in PVS or declared brain-dead cannot consent to be a surrogate, but argues that it would be “relatively simple to tweak” existing organ donation protocols for use in WBGD. If an individual has agreed in advance to being an organ donor, it could be assumed this includes her uterus, which is an organ.

What is the difference between keeping a brain-dead person on life support until her organs can be donated, and keeping her on life support so she can be impregnated and gestate a baby for someone else?”