Someone who has TB in India can infect you here. They
cough, maybe they are working at an airport, the germs
slither onto the plane, then you get on the plane, and you
—Archbishop Desmond Tutu, HIV/AIDS and the Global
Community: We Can Be Human Only Together
IT IS BANAL BUT TRUE to say that we live in a global age. Advances in communication technology (especially the Internet) and travel have combined with the integration of markets and the spread of capitalism to knit the world in new ways. This integration, or globalization as it is widely called, can create novel risks for population health, both by increasing health disparities around the world and by facilitating the spread of disease-causing vectors, either microbial or man-made. On the other hand, globalization also has the potential to promote population health, both by supporting the diffusion of health-promoting interventions and technologies and by highlighting the interdependency of population health. In either case, globalization creates new challenges and opportunities for population-based legal analysis. This chapter looks at some of those challenges and opportunities.