Hillary Clinton's policy speech - Democratic presidential candid- Navbharat Times Photodhamal

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Democratic presidential candidate Senator Hillary Clinton addresses America's energy and environmental challenges at Clipper Windpower in Cedar Rapids, Iowa. (AP Photo/Brian Ray)

In This Pic : US Senator, US Presidential candidate, US energy and environmental challenges, Iowa, Hillary Clinton's policy speech, Hillary Clinton at Iowa, Hillary Clinton, Hillary, Clipper Windpower, Clinton, Bill Clinton's wife

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Democratic presidential candidate Senator Hillary Clinton delivers her policy speech during a campaign stop at the Renewable Energy Group in Newton, Iowa, November 06, 2007. (Reuters/Joshua Lott)

In This Pic : US senator Hillary Clinton, US Presidential candidate, Renewable energy group, Hillary Clinton's policy speech, Hillary Clinton at Iowa, Hillary Clinton, Hillary, Clinton, Bill Clinton's wife

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Democratic presidential candidate Senator Hillary Clinton delivers her policy speech during a campaign stop at the Renewable Energy Group in Newton, Iowa, November 06, 2007. (Reuters/Joshua Lott)

In This Pic : US senator Hillary Clinton, US Senator, US Presidential candidate, Renewable energy group, Hillary Clinton's policy speech, Hillary Clinton, Hillary at Renewable Energy group, Hillary, Clinton, Bill Clinton's wife

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Democratic presidential candidate Senator Hillary Clinton listens to a supporter's question during a campaign stop at Festhalle Barn at Amana Colonies in Amana, Iowa, November 6, 2007. (Reuters/Joshua Lott)

In This Pic : US Senator, US Presidential candidate, Hillary Clinton's policy speech, Hillary Clinton, Hillary and campaign, Hillary, Festhalle Barn, Clinton, Bill Clinton's wife, Amana Colonies

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Democratic presidential candidate Senator Hillary Clinton smiles during a campaign stop in Amana,Iowa,Tuesday, November 06, 2007. (AP Photo/Paul Sancya)

In This Pic : US Senator, US Presidential candidate, Hillary Clinton's policy speech, Hillary Clinton in Amana, Hillary Clinton and campaign, Hillary Clinton, Hillary, Clinton, Bill Clinton's wife