Oh, I agree, but this:

During the primary campaign Sen. Obama was solidly opposing NAFTA and was all for renegotiation.

and this:

So who is Sen. Obama? Is he the same person that castigated Sen. Clinton as a corporate Shill?

Are just goofy.  The questions are basically "haha - you all thought you were getting Noam Chomsky; well guess what, you're not!" while we're all kind of scratching our heads.