However, internet advertising for organs is a highly controversial practice, as some scholars believe it undermines the traditional list-based allocation system.The National Transplant Organization of Spain is one of the most successful in the world (Spain has been the world leader in organ donation for decades), but it still cannot meet the demand, as 10% of those needing a transplant die while still on the transplant list. Donations from corpses are anonymous, and a network for communication and transport allows fast extraction and transplant across the country. Under Spanish law, every corpse can provide organs unless the deceased person had expressly rejected it. Because family members still can forbid the donation, carefully trained doctors ask the family for permission, making it very similar in practice to the United States system.In the overwhelming majority of cases, organ donation is not possible for reasons of recipient safety, match failures, or organ condition. Even in Spain, which has the highest organ donation rate in the world, there are only 35.1 actual donors per million people, and there are hundreds of patients on the waiting list. This rate compares to 24.8 per million in Austria, where families are rarely asked to donate organs, and 22.2 per million in France, which—like Spain—has a presumed-consent system. Prison inmates
In the United States, prisoners are not discriminated against as organ recipients and are equally eligible for organ transplants along with the general population. A 1976 U.S. Supreme Court case ruled that withholding health care from prisoners constituted "cruel and unusual punishment".
United Network for Organ Sharing, the organization that coordinates available organs with recipients, does not factor a patients prison status when determining suitability for a transplant. An organ transplant and follow-up care can cost the prison system up to one million dollars. If a prisoner qualifies, a state may allow compassionate early release to avoid high costs associated with organ transplants. However, an organ transplant may save the prison system substantial costs associated with dialysis and other life-extending treatments required by the prisoner with the failing organ. For example, the estimated cost of a kidney transplant is about $111,000. A prisoners dialysis treatments are estimated to cost a prison $120,000 per year.Because donor organs are in short supply, there are more people waiting for a transplant than available organs. When a prisoner receives an organ, there is a high probability that someone else will die waiting for the next available organ. A response to this ethical dilemma states that felons who have a history of violent crime, who have violated others basic rights, have lost the right to receive an organ transplant, though it is noted that it would be necessary "to reform our justice system to minimize the chance of an innocent person being wrongly convicted of a violent crime and thus being denied an organ transplant".Prisons typically do not allow inmates to donate organs to anyone but immediate family members.