I certainly agree with jno but with a different emphasis. Once the control is delegated to bureaucrats, it's been shown time and time again that it's only a small hop, skip and jump for the determination of actual death to ne "enhanced"... Several cases, not even involving government forced organ donation have already cropped up here in the U.S. where the patient was either allowed to expire or the expiration was "nudged" along for the convenience of the receiving patient.
Is there a person alive beyond the age of majority that hasn't had the government really screw up some situation? Not only that, but what (as has been mentioned) happens for receptor selection? If the donor's organ(s) are harvested after death and the family has a friend/relative that needs the organ, can the governing body over rule in favor of some more deserving recipient? Call me cynical, but no, thank you...