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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.

Summary: Clean-energy technology is expensive and the United States is spending far too little on developing it. The U.S. government must do more to promote cross-border innovation and protect intellectual property rights.

From the Middle East to Madagascar, high prices are spawning land grabs and ousting dictators. Welcome to the 21st-century food wars.