Let me post this disclaimer that I am as Democrat as they come.
I somehow don't see the difference between this and depicting George W. as a chimp. Must be the whole "race" thing, or something. C'mon people! Stop feeding the flames! If you're going to put this kind of energy into something so trivial as a human-less web image search aggregator, you're only going to make it worse. The Google juggernaut is only doing it's job, which is to crawl the web, and give you, based on mathematic algorithms, what -it- deems to be the most relevant results. Racism is a human condition, not a mathematical model. Google even tried to fix it, but the humans figured a way around it.
Incidently, do a Google Image search for "George Bush". I guarantee that you will see at least one comparing him to a chimp. I never heard someone put up a stink about Google displaying these on the first result page.