FILE - In this May 28, 2007 file photo, Yale University President Richard C. Levin waves as he arrives at his office on the Yale campus in New Haven, Conn. before the start of the unive

 

              FILE - In this May 28, 2007 file photo, Yale University President Richard C. Levin waves as he arrives at his office on the Yale campus in New Haven, Conn. before the start of the unive
FILE - In this May 28, 2007 file photo, Yale University President Richard C. Levin waves as he arrives at his office on the Yale campus in New Haven, Conn. before the start of the university's commencement ceremonies. Levin, 65, announced Thursday, Aug., 30, 2012, that he will step down at the end of the academic year after 20 years at the Ivy League school. (AP Photo/Bob Child, File)