Drones: The face of the war on terror

USA Today: A drone strike that killed an alleged planner of the 2013 Kenyan mall massacre is the latest victory for a U.S. campaign that has taken out more than 500 suspected terrorist leaders since shortly after the 9/11 attacks.

Most have been drone strikes, the Obama administration's weapon of choice. It has authorized at least 450 attacks by unmanned aircraft, according to Micah Zenko, an analyst at the Council on Foreign Relations.

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