Curious, is it not? I've seen speculation that it is there that The 0ne hooked up with Ayers and his ilk. Oh, to have an honest press....
You must not live in NYC. There have been quite a few stories about Obama’s Columbia years in the New York press and in the New Yorker:
http://www.nytimes.com/2007/10/30/us/politics/30obama.html