My "glasnost" thought is that so much paperwork is still being revealed by the remains of the Soviet empire, that it is quite possible something was revealed in 2005 that would cause NASA to firm their belief that the Kecksburg crash was one of theirs. The timing is just about right for some old papers to come to light -- maybe that Venus probe wasn't going quite in the direction anyone thought it was at the time. Or maybe the Russians had something else come down that was sensitive enough they didn't want to go into it at the time.

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"You keep using that word. I do not think it means what you think it means."