Rush Limbaugh isn't apologizing

He is accused of being racist for making sounds intended to sound Chinese.  I can remember the Muppet Show had a character known as the Swedish chef that didn't speak any known language.  Nobody seemed to get upset back then.  Maybe it all depends upon who's being "imitated".  If it is a European culture, no big deal.  But if it is anything else, look out.  It is especially ironic in this case because the Chinese consider their country to be the Middle Kingdom.  Everyone else is considered barbarians.  The charge of racism seems like a mighty stretch to me.