 The DVD version omits the scenes where Robert DeNiro and Steve Buscemi talk  about the attacks. In the original broadcast version, just before the first  plane hits, we hear James Hanlon say "It was 8:46 in the morning.  Thats  when this stopped even resembling a normal day."  On the DVD, the second  sentence is replaced with a line from Battalion Chief Joseph Pfeifer,  commenting on how you dont usually hear planes fly that low in Manhattan.