ference the autopsy among the bullets the concept of fingerprints all the chain of evidence was lostthe oswald's interrogation was lost unfortunately more than fifty thousand pages of j.f.k. related classified documents are being withheld despite a four year request for the release of this information for the fiftieth anniversary of his death this year but people are still demanding the truth in fact the national archives and records administration just asked for suggestions on a public forum about what it could do to create greater transparency and lo and behold the most popular response was to get the kennedy records out so here to talk about what these records could reveal and whether the holdup is more strategic than we all think i'm joined now by russ baker editor of who what why dot org and author of family of secrets thank you so much for coming on right so you've been investigating this issue for a very long time let's talk first about the documents these fifty thousand pages that are not being released it's only one percent according to the establishment so if we already hav

- that is a result of inter-- - ference. --interference and the phenomenon that's called-- sound. this phenomenon of pulsating-- two sounds pulsating in and out, in and out of phase is called, by the way--scholars? - beats. - beats. all right. i thought you guys were putting me on there for a while. and that's a beat. ted, can we show beats up here? hopefully show beats. so you can see as well as hear what's going on. you can see the wave form. isn't that nice? we certainly hear the wave forms but now we can see them. so this device, called an oscilloscope, beautiful, allows us to see the shape of waves. very, very nice. wow. where it's extra loud, a compression from one fork and a compression from the other have reached your ear. and where it's very low, a compression is matched by a rarefaction, in one fills and the other, it makes it like null. isn't that nice? beats. question, paul? can you explain why laser discs are suppose to have a better sound quality than tapes? those laser discs amaze me. let me tell you what a laser disc does. you saw ted sang in here and showed you a

daniel ackerson and here to talk about energy security, a major focus of the discussion on the con ferenceu say fuel efficiency is really key to long-term energy security, as well. >> well, it is. i mean, you have to -- you have to find new sources of energy which it seems the united states has been blessed with the gift here. and then you have to use it efficiently. not only from a consumer point of view, factories, consumers being primarily 60% of light vehicles burn 60% of those cars are the transportation budget if you will for the american consumer. so when you look at general motors, our obligation, our attempt to address the market as best we can to build more fuel efficient cars and we are. >> one of the things i find so fascinating is how much to save in terms of our gasoline use, oil use based on the fuel efficiency standards you are laying out. you have an approach that's going to last through 2016 that you're mapping out but how much savings are we talking about here? >> well, to give you an idea, five years ago about 16% of our portfolio here in the united states made 30 miles

changed within the last 12 months, and i have had contact with both of them, one with a video telephcon ference and one with a telephone conversation. i am, and the way we work that is we acknowledge the points of disagreement or friction between places then we find the where we can work together on common interests absent those frictions, and then we try to move toward each other from the bottom up. we already have a very robust engagement at the service level with our chinese counterparts, and so you will see me try to connect that with a strategic level engagement. look, i have said we already had a conversation about what is this rebalancing to the pacific really mean, and i was able to explain to them that it is my military belief that it will -- it would be our absence, not our presence in the pacific, that would lead to a miscalculation and misperception. that our presence there, even from time to time well -- we will misunderstand each other, but we will work through those misunderstandings because we are there. if we were not there, i do not know on what basis we would have that kind o