CNN 911 September 12, 2021 01:40:00
>> some outsideline companies didn't know what tower one was and tower two. so we were just trying to help them out by writing it on the desk to make it obvious to people. >> it was just before 10:00, a little over an hour since the first plane hit. firefighters from all over the city were inside those towers, hundreds of them. >> i remember i'm filming chief peiffer and he's on the radi o.