The Senate is holding hearings on whether oil prices are being manipulated by investors. Who gains from higher prices? What kind of lifestyle changes will Americans be forced to make? Will more people go green? Guest host Sara Terry looks beyond sticker price shock at the gas pump. Also, speculation on the results of today's primaries, and if you think gas prices are high, imagine spending three quarters of your income on food. A major UN summit opens today in Rome to tackle the global food crisis.
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