"Paul Boutin points out on his blog that if you search for "Tiananmen," you get peaceful photos of the Beijing square -- but if you search for common misspellings like "Tienanmen," "Tianenmen," or "Tiananman," you get photos of tanks."

Somehow, I think it is not an oversight ...

heh.  thats pretty cool.  'sure we'll censor for you.  just give us a very specific list of exactly what words you want censored and we'll get right on that'

http://antyx.blogspot.com/2005/10/value-of-getting-it-wrong.html

It works well in technical writing, too. ;)