For those that don't know what's going on... When people search for terms like "N*gga House" or "N*gger House", Google Maps was taking them to The White House and Chicago, IL. Obviously, an offensive jab at President Obama.
What people that observed the incidents often don't realize is that no one at Google actually planted those results. Google's algorithms were simply picking up on the terms, conversations on public forums and public chat rooms, etc. that racist assholes were spewing all over the internet when referring to The White House and Chicago (because he is associated with both places).
Since the algorithms operate rather autonomously, it's hard to blame Google for what racist pricks online say out of their mouths. What's interesting to note however... How does one make such a discovery unless they're thinking along those lines anyway?
Now, evidently, this has been going on for years, so one can blame Google for not fixing it sooner.