right to health. In recent years, the worldwide human rights organization Amnesty International has focused on health as a human right, addressing inadequate access to HIV drugs and women's sexual and reproductive rights including wide disparities in maternal mortality within and across countries. Such increasing attention to health as a basic human right has been welcomed by the leading medical journal The Lancet. There remains considerable controversy regarding policies on who would be paying the costs of medical care for all people and under what circumstances. For example, government spending on healthcare is sometimes used as a global indicator of a government's commitment to the health of its people. On the other hand, one school of thought emerging from the United States rejects the notion of health care financing through taxpayer funding as incompatible with the (considered no less important) right of the physician's professional judgment, and the related concerns that government involvement in overseeing the health of its citizens could erode the right to privacy between doctors and patients. The argument furthers that universal health insurance denies the right of individual patients to dispose of their own income as per their own will. Another issue in the rights debate is governments' use of legislation to control competition among private medical insurance providers against national social insurance systems, such as the case in Canada's national health insurance program. Laissez-faire supporters argue that this erodes the cost-effectiveness of the health system, as even those who can afford to pay for private healthcare services drain resources from the public system. The issue here is whether investor-owned medical insurance companies or health maintenance organizations are in a better position to act in the best interests of their customers compared to government regulation and oversight. Another claim in the United States perceives government over-regulation of the healthcare and insurance industries as the effective end of charitable home visits from doctors among the poor and elderly. Economics: healthcare financing Many types of health policies exist focusing on the financing of healthcare services to spread the economic risks of ill health. These include publicly funded health care (through taxation or insurance, also known as single-payer systems), mandatory or voluntary private health insurance, and complete capitalization of personal health care services through private companies, among others. The debate is ongoing on which type of health financing policy results in better or worse quality of healthcare services provided,