FILE - This Dec. 4, 2011 file photo shows &quot;Sesame Street&quot; character Elmo and puppeteer Kevin Clash arrive at the Kennedy Center for the Performing Arts for the Kennedy Center Honors gala performance in Washington. Clash has taken a leave of absence from the popular kids&#39; show following allegations that he had a relationship with a 16-year-old boy. Sesame Workshop says Kevin Clash denies the charges, which were first made in June by the alleged partner, who by then was 23. In a statement issued Monday, Nov. 12, 2012, Sesame Workshop says its investigation found the allegation of underage conduct to be unsubstantiated. (AP Photo/Kevin Wolf, file)