O'Hare International Airport. Only English please!

I have flown numerous times from and to O'Hare airport in Chicago. I have never had a problem, in fact, it has always been a smooth transitional airport. However, while I'm waiting for my parents to arrive from Spain, I couldn't avoid noticing something extremely surprising. There are no signs whatsoever in any other language than English. I would expect at least Spanish, and wouldn't be surprised to find more languages, as in any other decent international airport. On the other hand, I have to say that everybody that I have spoken to today have been very helpful (and I have made an effort to ask around for the simplest things to find, just to see if it worked). Also, some of the workers that I have talked to were most likely bilingual. So, if you are flying to or from O'Hare be ready to deal with some issues if you don't speak any English. However, don't be afraid to ask around, workers are nice and helpful.