The world may be getting smaller every day, but until very recently health care remained local. 'Patients with Passports' is the first comprehensive legal and ethical analysis of one part of the globalization of health care: medical tourism. The author examines the two sides of the industry: medical tourism for services legal in the patient's home country where patients travel to places such as India, Thailand and Mexico to reduce costs, avoid queues, or qualify for insurance incentives, and medical tourism for services illegal in the home country.