Jeff Jarvis has had a whole series of articles about the ridiculous Federal Censorship Commission and their mission to stop you thinking about nooky. I think I'm sccoping him on this one though. Fox decided to fuzz out part of a cartoon to be sure it didn't generate any fines from the Virtue Police.
The latest example of TV network self-censorship because of FCC (news - web sites) concerns came a few weeks ago during a rerun of a "Family Guy" cartoon. Fox electronically blurred a character's posterior, even though the image was seen five years ago when the episode originally aired.
This sounds more like something that would happen in Saudi Arabia than America, which, last I heard, had something called a Constitution with an Amendment that guarrantees Freedom of Expression. Next thing you know the FCC will be jumping over the EU's bright idea and trying to ban the display of a thousand year old religious sysmbol.