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Photograph by Doug Mills/The New York Times via Redux
From left, Defense Secretary Leon Panetta, President Obama, and Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey at a Sept. 11 memorial ceremony at the Pentagon in Arlington, Va.
From the death of Osama bin Laden, to U.S. troops’ departure from Iraq and drawdown in Afghanistan, to the provisions of Dodd-Frank, we examine developments in American security in the past four years:
Drones: The Morality of War From the Sky
Americans Left Iraq. Afghanistan Is Winding Down
Troops Return Home to New Battles