answer:Surely you can understand some of the ethical concerns, can’t you? After all, if people can be hoodwinked out of their life’s savings to make bad / frivolous or totally fraudulent “investments” – and that’s just money! – imagine what could happen if people were convinced to sell both kidneys, or a liver. And don’t for a second imagine that no doctor would perform such an operation, because surely some would, even if it meant the likely death or incapacity of the donor. Or take another case, where a parent or guardian acting in loco parentis decides – and has full legal authority – to sell a child’s kidney. I’m in favor of relaxing the absolute prohibition against a free market in human organs, but I certainly understand the valid ethical concerns that drive that prohibition so far.