Originally posted by SC:
[Further to this, in the second draft of the script (pg 95) there's mention of the skimming process that the Corleone Family followed and it refers to a family courier having a flight layover at Kennedy Airport (before continuing on to Geneva with the skimmed money). The New York airport was then named Idlewild (before Kennedy was killed). Its one of the sloppy details that were apparent in Part II (despite it being an extraordinary movie).
But since that part of the second draft never made it to the final cut of the film, it didn't become a sloppy detail. I have to believe that at least some of the mistakes and hard-to-believe scenarios that appeared in earlier drafts of the script didn't get into the final cut because FFC recognized them as errors and fallacies, and excised them.