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Skeptic No Longer Doubts Human Role in Global Warming

Skeptic No Longer Doubts Human Role in Global Warming

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Poll Numbers Sliding, Romney Plans to Offer Policy Specifics

Poll Numbers Sliding, Romney Plans to Offer Policy Specifics

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Weekly Poem by U.S. Poet Laureate Natasha Trethewey

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News Wrap: Chinese Protests over Japan's Islands Acquisition

News Wrap: Chinese Protests over Japan's Islands Acquisition

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Middle Eastern Christians Are Increasingly Emigrating

Middle Eastern Christians Are Increasingly Emigrating

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Surge of 'Green on Blue' Attacks Has Great Cost for U.S.

Surge of 'Green on Blue' Attacks Has Great Cost for U.S.

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Kofi Annan on 40 Years Trying to End War, Promote Peace

Kofi Annan on 40 Years Trying to End War, Promote Peace

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GOP Scrambles to Contain Damage from Video at Fundraiser

GOP Scrambles to Contain Damage from Video at Fundraiser

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National Pride Is at Heart of China and Japan Dispute

National Pride Is at Heart of China and Japan Dispute

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News Wrap: Pa. Court Rules Review Needed for Voter ID Law

News Wrap: Pa. Court Rules Review Needed for Voter ID Law

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How the Mortgage Crisis in Nevada Will Affect Voters

How the Mortgage Crisis in Nevada Will Affect Voters

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PBS News Hour

Data Mining Creating a Revolution for Campaign Strategy

Increasingly, behavior psychology concepts like 'social pressure' can be used not only to get voters out to the polls but getting them to vote for a specific candidate. Hari Sreenivasan talks to journalist Sasha Issenberg about his latest book, "The Victory Lab: The Secret Science of Winning Campaigns.
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