I have operated into all the U.S. airfields quoted in my previous long-haul and jet-lagged existence.There is no obvious comparison in that the American controllers just speak fast,but at least it is in English.And I don't necessarily agree that they do talk that fast.Going back to France,can anyone clarify whether they are legally obliged to speak English on the radio or is that just myth?Nevertheless, CDG and NCE are IMHO chaotic and border-line dangerous airfields,the dual language problem being a significant factor.