a vested interest in saving their own hide to give us information that is truthful and verifiable. >> and who go to great length to make sure those people who are flipping are in fact telling the truth to the prosecutors, because they don't want to go out on a limb with rotten evidence. >> and by the way -- >> hold on, laura. john dean knows a thing about cooperating with investigators. this is a conversation between john ehrlichman and president nixon, from april 8th of 1973, and they're talking about you, john. >> john dean thinks that that's mitchell's frame of mind on all of this. he doesn't really know much about preparing himself. so, uh -- >> what does dean think about everything? >> he says it's not going to go away, it's right on top of us, and the smartest thing dean can do is go down there and appear