they don't only want to find out what happened, they want to contain the damage. >> here's another intriguing part that julian had first referred to. that is somehow the fbi knew oswald would be killed. here is the excerpt from j. edgar hoover. there is nothing further on the oswald case except that he is dead. we received a call in our dallas office from a man talking in a calm voice and saying he was a member of a committee on organized to kill oswald. what's your thinking behind that one? >> that to me is the most important document to come to light so far. one thing that becomes abundantly clear, we remind ourselves that the fbi and cia didn't collaborate together very well, for starters. you know, neither did navy and army in the 1950s, by the way. but it comes shining through these documents. in this case, hoover comes out to be kind of the interesting good guy, oddly.