Unaired? After the zoom in, it looks very similar to the shot listed above. Unfortunately, the AP Archive files (original link is dead so I used the wayback machine) are not of the best quality. The mpeg2 clips look washed out and altered, in addition to the AP stamp, run time box, and story number box.
Note that there is another APTN shot of the 2nd “collapse” from nearby not listed here because buildings block the view of all but the dust/debris cloud.
No NIST file has been found. See instead the similar angle NIST WNBC Dub4A 29 below.
AP/ APTN Below North 2
YouTube 1
