I've noticed a looooong time ago that Google has always tried to censor nudity. This is just a continuation on the same path. All you have to do is load Bing image search next to Google and do the same searches. It's pretty self evident. And also pretty freaking lame, because it doesn't reflect reality at all, just modern day US centric political correctness. Part of the US public is up in arms about breasts the same way EU is about Google News or corporate America in general. Different traditions. Google should be neutral, but it clearly isn't.