The World's Biggest Challenge: Feeding Humanity

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Some 800 million people around the world are already hungry and millions more face starvation due to the rising price of food. We look at the causes and possible solutions to a problem that will plague humanity for years to come.  Also, a possible government bailout for two mortgage lenders, and we talk with a former Secretary of State about the President, the Congress and the power to declare war.

Banner image: A woman checks her bag of cheap government rice at a market in Manila on July 4, 2008. Rising food prices in the Philippines pushed its June inflation rate to 11.4%, the highest level in 14 years. Photo: Jes Aznar/AFP/Getty Images