I read that machan, I also found several articles that say its a bug.
I also found following details while surfing the web but don't have the exact links now.
Apparently the autocomplete feature was designed with the ability to restrict the suggestions. Means google can restrict the negative or positive suggestions that fill in.
Try 'americans are' or 'australians are' it will not give anything. "Islam is" will not give any negative suggestions but "Mohammed is " will give loads of negative suggestions.
So maybe its a bug. But if it is a bug, its a really BIG bug, coz I don't understand why google is taking this long to fix it. They are supposed to have the best people right?
yeah thats true but it looks like it works in UK fine



