Julian Zelizer provides a historian's view of the five momentous events of the decade, starting with the attacks of September 11, 2001 FULL STORY
Lida Margonelli says there were hopeful signs the leaders of the 21st century's biggest economies are committed to the issue FULL STORY
Hamid Dabashi faults President Obama for not showing more forceful leadership by pushing for strong action at the Copenhagen climate summit FULL STORY
Nigerian author Chimamanda Adichie believes in the power of stories, and warns that hearing only one about a people or nation leads to ignorance. FULL STORY
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