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Last President to probably be 'in on' the alien/UFO arena was probably George Bush senior(as he was head of the CIA).Whether he let junior know about any of that I don't know.But it's got an even higher classification than the H-Bomb,so only a VERY select group are privy to info,and that is usually compartmentalized to such a heavy degree that people who know stuff only know a fraction of the big picture.
