Dust From North Tower Destruction

Aerial View From Northeast of Dust Flows Following North Tower's Disintegration

This still, which appeared in FEMA's report was taken around 30 seconds after North Tower's disintegration began. One indication of the time is that the spire, the vertical remnant of the tower's core structure immediately behind Building 7, is still visible, but may already be collapsing.

Better-quality stills, apparently from the same video, show more detail but are cropped more closely.

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