>> i would just add to follow up, one of my big takeaways from your work is that regarding berlin versus cuba and the rational for the deployment of the missiles, he is saying different things to those different levels within the hierarchy. to first tier officials he is talking about berlin but to the second tier officials it doesn't mean it's the secondary reason but probably gravitating in that direction. those are the people hearing more about the cuba rational. >> it's spin. the cuba rational, the spin that comes out later because he's trying to explain why he did this. the question about why he doesn't take credit, that's a great question and i know why he doesn't initially because the americans say to him if you say anything about the turkish deal it won't happen. then he, 64 he's out. why he doesn't take credit in his memoirs i don't understand. but at length, because i mean, because the chinese and the cubans were vicious in attacking him for the outcome and you'd think because he's quite repetitive in these -- in his that he would have really gone to town against them saying, you kno