Barack's Favorite radical.

Radical William Ayres is a problem for Obama whether he knows it or not. It may play well in the elite circles that the Obamas frequent but the rest of us don't see it that way

Here Obama "explains" his relationship with Ayres:

Obama replied that Ayers "is a guy who lives in my neighborhood, who's a professor of English in Chicago, who I know and who I have not received some official endorsement from. He's not somebody who I exchange ideas from on a regular basis. And the notion that somehow as a consequence of me knowing somebody who engaged in detestable acts 40 years ago when I was 8 years old, somehow reflects on me and my values, doesn't make much sense...."

In other words because Obama was 8 years old when Ayres was blowing up buildings, that makes it just fine today. Oh but he's just a guy from Obama's neighborhood. Who else is Obama friends with?

Article here

Interview with Ayres here