Nobel Prize winner Malala Yousafzai listens to eyewitness accounts of the Taliban attack on the Army Public School in Peshawar, Pakistan, which took place on Dec. 16, 2014, and killed 150 people, as she attends the "Poppies for Peace in Peshawar" event in Birmingham, central England, Tuesday Dec. 15, 2015. The 18-year-old said comments such as those by controversial United States presidential hopeful Donald Trump could "radicalize more terrorists" and urged politicians to think carefully before speaking. (Joe Giddens/PA via AP)
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