Speaking at Virginia Tech, the son of a 1960s Democratic icon said the nation is living a "science-fiction nightmare."BLACKSBURG -- The crowd that nearly filled Virginia Tech's 3,000-seat Burruss Hall Auditorium to hear environmentalist Robert F. Kennedy Jr. speak probably had an idea about what he thought of the Bush administration before he took the podium.~~ snip ~~ But early on in a rambling speech Monday night that lasted more than an hour, [Kennedy] made it clear that he wasn't critical of Bush because of his political affiliation. He was critical of him, he said, because Bush has implemented policies...