. >> the site condition knowable at the time the contract was entered into? >> the original m orca -- m oa and the amendment did not include for the contaminated materials. >> were they known? was it known at the time of the contract? >> it was not known. >> usually i don't like to change it. if it's $3 million and now it's $4 million. >> we don't like making this request. it's unfortunate the situation that we are in. >> why are we absorbing all of these cost? is this cost not shareable with other entities. >> we have a permit to do this work on cal trans land. cal trans states that it's not responsible, that it did not of these contaminant materials and that they only brought in topsoil >> it's been there all this time? >> yes. from many years back. >> what was that location used for previously, do you recall? >> there was a foundry. i have to defer this to the transit authority. >> what are we doing with this after we clean this up. what are we doing with this parcel? we are building? >> housing, mixed income housing. >> so this will clean the area so when

let's start with what exactly we can know and what will be knowable, if you will.does the investigation go down with all of this startling information that came out today? >> you're going to need to understand the actual tick tok of events from the moment the captain leaves the cockpit, you want to know what happened. we know from what the prosecutor said, he leaves the cockpit and lubitz initiates the descent by turning the auto pilot from 38,000 to 100 feet. at that point, the captain obviously tries to go back into the cockpit. we do not know if he used the override procedure. >> is it because he may not have time to? >> we just don't know. the ceo of lufthansa was specific. we don't know. nor do we know if lubitz double locked the door. so we don't know those facts. all we do know is the captain attempts to get back in the cockpit by knocking on the door and gets more frantic. >> is that information that will come out in the flight data recorder? because the cockpit voice recorder clearly offered a lot of information. will information as explosive as that come

maybe some of these details are not knowable ever. i want to know was there some past medical history as a starting clue. were there any signs ever distress? did their breathing change? did their voice, have any kind of sound of pain, for example, if someone has a ruptured aneurysm. same sort of thing can happen with chest pain. doesn't have to. obviously we're speculating but if you had to play the odds you would think there's some sort of sign if there were sensitive enough recorder there my understanding they have a microphone right on the mouth. >> that goes to my question. the recorder is sensitive enough to pick up labored breathing. >> to find out if somebody is breathing. can you tell if they are breathing. any kind much these sounds would be part of that. would you think they would have been mentioned by the source that said hey we knew he was knocking on the door. if he heard that as well -- >> the other question in terms of medical check ups for pilots, how routine are they? >> in a commercial flight and i would have to che

this continual telescoping between past and present, between knowable and unknowable details creates highly readable prose, but obscures the temporal allusion between the early 17th century and late 18th. describing the may flower compact, marshall and manuel provide a perfect example of how using the framing and texture of events. the authors write the pilgrims ss drafted a document pragmatic realistic and expedient and embodied the same principles of quality and government by consent of the governed which would become the cornerstones of american democracy. this analysis is then immediately amended with a parenthetical reaching further back. before skating forward in time, to quote the declaration of independence as opening lines. in a space of one page the authors demonstrate the central ty of the pilgrims document to a history that stretches from biblical times then through the enduring influence of jefferson's words up to our present. interestingly, the document itself and the question of what specifically is meant by principles of equality amidst language that stresses submissi