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In this photo provided by the University of Mississippi, Walter Mitchell, a freshman from Sherman, Texas clears brush behind the Stone Community Center in Oxford, Miss. on Saturday, March 2, 2013 as part of the Ole Miss Big Event.  The Big Event is a a campus wide day of service with over 1500 students volunteers working together to help with numerous project in the Oxford and Ole Miss community.  (AP Photo/University of Mississippi, Nathan Latil)