Words. and it seems like if the tape said one thing, that's what it would say. it sounds like a substitution or a taper a tape that was cut off. and they discovered the tail end of it it's hard to understand what the significance could be. >> the one other thing i don't quite understand about it is that 1:19 a.m. is when we were told the co-pilot's last words are. they are not telling us when this new phrase, whether that was at 1:19 or whether that was a later communication they are not giving us that information. so that's another piece of the puzzle. >> it's a puzzle all right. >> colleen, ...