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Summary: The world's leading international institutions may be outmoded, but Brazil, China, India, and South Africa are not ready to join the helm. Their shaky commitment to democracy, human rights, nuclear nonproliferation, and environmental protection would only weaken the international system's core values.

Summary: With one billion people already going hungry and the world's population rising, global food production must urgently be increased. The countries that managed such surges in the past -- Brazil, China, India, the United States -- cannot do so again. But Africa can -- if it finally uses the seeds, fertilizers, and irrigation methods common everywhere else.

The spread of a new sort of business in the emerging world will cause increasing problems.