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It's been called the most successful alliance in world history. President Obama and fellow leaders of the North Atlantic Treaty Organization, NATO, are meeting at an important summit in Chicago this month to discuss the future of the alliance.

NATO troops have now spent a decade in Afghanistan, and more recently, NATO airpower helped to overthrow Moammar Ghaddafi in Libya. But in the face of economic stress, and war-weary publics in the United States and Europe, how will the alliance move forward?

What does Iran's new leadership mean for the future of the country, its nuclear weapons program and relationship with the West, and for Iranians around the world? 

From the Boston Marathon bombings to a recent attack on the Westgate Mall in Kenya, 2013 has seen a spike in terrorism worldwide. Even as the U.S. uses military force to try and weaken Al Qaeda and affiliated groups, it is grappling with how to fight terrorism on another front -- battling the extremist ideas and ideologies that drive the violence. It is a battle that is waged in schools, mosques, community centers and any other place you might find potential terror recruits.

"Those who argued for these tactics were on the wrong side of the debate, and the wrong side of history. That's why we must leave these methods where they belong, in the past..." 

– President Obama, speech at the National Archives, May 2009

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