Joplin School Superintendent C.J. Huff wipes away tears as he addresses the Class of 2012 during Joplin High School commencement ceremonies Monday, May 21, 2012, in Joplin, Mo. Seniors at the school finished their high school education in a converted big-box store after the old high school was destroyed by an EF-5 tornado that killed 161 people on graduation day a year ago. (AP Photo/Charlie Riedel)
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