  Features (1) and (2) combined are supposed to rule out exploitative organ trafficking from poorer countries, while the ban on direct sales and allocation by a central agency ensure that the organs go not to those most able to pay, but to those in most need. In common with many other defenders of organ sale, Erin and Harris also propose building in practical protections for donors and recipients (e.g., adequate medical care and thorough health checkups before donation takes place).