In Communications Media, Globalization, and Empire, an international team of experts analyze and critique the political economy of media communications worldwide. Their analysis takes particular account of the sometimes conflicting pressures of globalization and "neo-imperialism." The first is commonly defined as the dismantling of barriers to trade and cultural exchange and responds significantly to lobbying of the world’s largest corporations, including media corporations. The second concerns U.S. pursuit of national security interests as response to "terrorism," at one level and, at others, to intensifying competition among both nations and corporations for global natural resources.