I still believe that Obama most likely did some kind of alternative program, where he got credit for training in Pakistan. We know from his passport that he travelled to Pakistan during the period that he was supposed to be at Columbia, but we don’t know when he returned.
I wonder if Wayne Root knew him as Barak Mounir Ubayd or as Harrison J Bounel [http://www.youtube.com/watch?v=X6tvti9um6k]; or did Obama get into Columbia on affirmative action and then told no way by the debt collector until he pays for undergraduate studies.