Was Obama Ever Actually At Columbia?

LISTEN HERE This is just incredibly weird.  How can so many people in the same major as Obama have attended Columbia at the same time and never have met him.  Columbia is a large school with a current student body of almost 28,000 students.  Even as large as the school is, it is very strange that so many people who were at Columbia at the same time that Obama was supposed to be there and never met him, never heard of him, never saw him.  There is also the story that Obama is an Indonesian citizen through his adopted father.  So exactly how does that work?  The secrecy surrounding Obama's background suggests strongly that there is something wrong, deeply wrong, that is being covered up.  Why is no-one in authority willing to step up and break the logjam.  APPARENTLY HE WAS