This could be some sort of pollution, a flock of birds or even balloons, but it is not a graphic. Grade B.
http://www.youtube.com/watch?v=5RMJwcbvDRw&feature=player_embedded#!Story Source:
http://thetruthbehindthescenes.wordpress.com/2010/11/01/ufo-ovni-fleet-night-vision-daylight-not-visible-in-normal-mode/ Dreamland Video podcast
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