Call me a cynic, but I have a suspicion that if Stone minds his P's and Q's on this flick, it's because there are 3,000 families that will serve him his own family jewels on a platter if he messes with it.
I'm not very anxious to see Stone's film, but the scope of the film is quite limited, according to a friend who visited the set. It is also based on real life people, specifically two Port Authority workers who were in the World Trade Center when it collapsed and survived after being trapped under the rubble.
Medved's speculation on O. Stone was that he was trying to rehabilitate his career.....we'll see.