Facebook gives Politico Private Information?

Source:
http://allthingsd.com/20120112/facebook-gives-politico-deep-access-to-users-political-sentiments/

The concept is essentially like Google's selling of statistical data.  Except deeper and more personal.  In theory, no one will be reading what you say in a 'This guy hates our ideas' kind of way.  But it does open the door to abuse.  It strikes me as a very slippery slope. 

What are your thoughts on this latest Facebook controversy?