Mysterious Flashes - DEW speculation on X

This footage comes from WPIX Air 11 live reporting on 9/11.

The full video has never been released to the public and was recently uploaded to YouTube by an unknown person (and now it seems to be gone).
X Post: https://x.com/i/status/1882034269079662771

I uploaded the video to YouTube and set it as unlisted, it still got flagged for hate speech and i got a strike against my channel.