>> we -- with respect to the retiering, no. with respect to tiering as a general proposition, companies change their holdings over time. they have new procedures that they put in place. the program allows them to come in and resubmit a screen and ask as to whether or not that would adjust -- >> then that could be done in an efficient fashion -- as many of the -- >> at any time. >> i want to jump to one last question in the time that i have. mrs. anderson, at one point in time, you had talked a little bit about the management and the culture where there were some senior officials with ethical and other kinds of performance issues that had been raised and that had not been checked upon or had gone unchecked. can you elaborate on that and what has been done to try to alleviate that issue? >> yes, sir, and thank you for the question. i'm not sure that we identified any ethical issues per se from those you're referring to, but certainly cultural challenges that be something we've encountered and are working to overcome. i think that

fly by as well very impressive and actually, kind of moving especially now, because this is the retierment of really the work force of the shuttle fleet. >> of course the final resting place would be, the space museum, udvar hazy space museum, throngs of people waiting today, i am sure the excitement is building,. >> a lot of space buffs take a look thousands of them here, you think you are down on the space coast watching a launch, these are folks who have been out here before dawn, it will pass overhead and eventually make its home for eternity, near dulles airport, you see the folks here taking a look, it is about the fly overhead, we are told it will be about 1500 feet, which is fortunately below the cloud cover, there is quite a bit of cloud cover there are times it will dip lower than that but people here are very excited we were in earlier and saw where discovery will be displayed, it is where the shuttle pro toe type enterprise has been since 2003 it will be replaced thursday when they finally get the shuttle off the back of the 747, and then, wheel discovery into the big hanger he