In "The Politics of CANDU Exports", Duane Bratt provides a comprehensive history of the export of the Canada Deuterium-Uranium (CANDU) reactor - nuclear power reactor designed and marketed by Atomic Energy of Canada Limited. Bratt examines every CANDU sale, as well as some important unsuccessful sales attempts, from 1956 to the present. He also outlines the impact that changes in the international political climate have had on CANDU exports over the last fifty years. Bratt's study attempts to develop a framework for understanding the ebb and flow of the influences of different foreign policy objectives on Canada's decision-making process. There are litanies of economic and political interests that Canadian governments have hoped to serve by exporting CANDUs, interests, such as economic gain, containing communism, and assisting the developing world. Yet, Canada has additional foreign policy objectives, such as national security, the protection of human rights, and preservation of the environment, which constrain the desire to export CANDUs. Furthermore, Bratt shows that while the traditional debate over export of the reactors was between Canada's commercial interests and its security concerns, since the early 1990s a new debate focused on extensive government subsidies and the environmental costs of building and promoting nuclear power has emerged.