We don't have to, something very similar happened the very same day.
[qimg]http://www.internationalskeptics.com/forums/imagehosting/888644e6b1dd0f08c.png[/qimg]
Killtown, granted it didn't crash in the ground, but doesn't it look a hell of alot like the plume in Val's picture? Can't you see in the video how plumes of smoke "behave"?
http://video.google.ca/videoplay?doc...71&q=plane+hit
I did see yours, now turn that video 90 deg so the plane is flying downward the the fireball would have behaved like the B-52 crash, no?