R abbi Binyamin Barnett was sitting in a far corner of the auditorium nearly invisible as he watched the graduation proceedings. There was Meir Bernstein accepting his diploma from the menahel. Meir paused near the edge of the stage looking out to where his proud parents and grandparents were seated and he smiled clutching the diploma like a trophy. Then his gaze went to the back rows to the slight young man in the dark suit.