dr. cassidy, do you have a question before the panel? the chair recognizes dr. idy for five minutes. >> there was another committee hearing. i apologize if somebody has already answered this. i am driving to my in-laws. i popped open myself all and it shows me the congestion of the freeway. i read an article on msnbc's it website about how this application data is stored for ever. i am thinking, "well, this is great. i can see where i am going any given time." on the other hand, why should do or apple keep this for ever? >> there are definitely wonderful secondary uses of application data that google and apple views. the map example is a great example you have to remember that it is me for a little bit. but forget that after an hour. there are things we can do to not remember it is and me for my entire life. apple's story about storing location and follow up to a year for what seems to be a marginal performance improvement and to increase better late life -- battery life is a good example of processed by design. it would be a great idea if you had all the cell to

dr. cassidy, do you have a question immediately for the panel? chair recognizes dr. cassidy for five minutes. >> [inaudible]. there's another committee hearing so i apologize if somebody already answered this. let me start with mr. brookman. mr. brookman, i'm driving to my in-laws. there is a wreck. pop up on the cell phone and tells me congestion on the freeway. this is pretty impressive. then i read article showing how broad-minded i am on msnbc's website how this location data is apparently stored forever. i'm thinking, that is great i can see where i am any given time, if there is red zone ahead i need to get off on a side road. on the other hand why should whomever, google, apple, keep this forever? what thoughts do you have? >> there are definitely wonderful secondary uses of location data that google and sky hook and apple have all uses for. i think the map is great example. there are ways to do it not privacy-invasive. they have to remember it is me for a little bit. they have to see my car stuck on the beltway moving five miles an hour. but they can forget th