As reported, there appears to be more to the story:
Columbia Alum Freed in Advance of Ahmadinejad’s Speech
Looks to me that Iran is still in the hostage taking business. Who approached who to gain the release of Columbia Alumnus?????
(CNSNews.com) – The president of Columbia University is expressing relief that a Columbia alumnus was released from an Iranian prison -- just days before the Iranian president is scheduled to speak at Columbia University.
for the rest of the story: Columbia Alum Freed in Advance of Ahmadinejad’s Speech