University of Southern California students celebrate at the end of commencement ceremonies on the USC campus Friday May 13, 2011 in Los Angeles. The commencement address was delivered by Microsoft CEO... more 
University of Southern California students celebrate at the end of commencement ceremonies on the USC campus Friday May 13, 2011 in Los Angeles. The commencement address was delivered by Microsoft CEO Steven Ballmer. The event was expected to include 40,000 graduates and guests and will include satellite ceremonies held by 34 USC schools and academic units. less 
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Associated Press | Photo By Nick Ut
Fri, May 13, 2011 3:10 PM EDT