UFO videos shot from plane windows seem to be becoming more common. Some of them are other planes, but almost all such videos show an angle of some sort where the tailplane would be. There is no tailplane shadow in this video.

http://www.youtube.com/watch?v=g7AbebWXFa0
Story Source:
http://www.youtube.com/watch?v=g7AbebWXFa0
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