Contributors also explored how our quest for greater health care equity and better access is complicated by ever-increasing challenges posed by increasing global migration, both temporarily and permanently, of people, diseases, ideas, culture(s), services and commodities. North-American patients travel to Europe for new hips and knees, or go south to obtain experimental treatments in Mexico or Brazil, while desperately ill European patients pay fortunes to participate in controversial stem cell trials in Russia or Turkey. Patients from many industrialized countries flock to India and China to get around long organ wait lists in their home country. Meanwhile, U.S. surrogates may enter into contracts with Australian couples to be impregnated in Canadian clinics with Scandinavian sperm. Can the law intervene effectively to protect and pro- mote the range of interests and values at stake, amidst these waves of medical tourism for organs, gametes, ova, and health care services? The intensification of international travel and trade also increasingly globalize traditional challenges to public health, for example those resulting from the threat of pandemic influenza and chronic diseases. Unhealthy food habits from the industrialized world are increasingly exported south, disproportionately affecting the health and well-being of the worlds poorer populations. Can law do anything to stem the spread of chronic disease and the ever expanding (pardon the pun) obesity epidemic?