jerry. they sure do. they do. they really do. mmhmm. workday. finance, hr, planning and spend management for a changing world. >>> welcome back to "squawk box. apple ceo tim cookp store. joining us is walter isaacson. professor at two lane university wrote the biography of steve jobs in 2011 walter, a lot is at stake here the question i'd ask you is how you'd handicap the trial thus far and what tim cook needs to say or not today >> i think the trial is leaning in apple's favor as they describe, it's part of apple's dna historically that it cure rates an app store. that it's not a monopoly in terms of cell phones it gets to curate the store that's safe, guards your privacy. they have a monopoly it's an iphone. developers should be paying that quote unquote 30% tax or not >> yes i think that if apple is able to say we do our policies in order to help the consumer, we do it to be safe, keep privacy, to pay for the store in a reasonable way, that's fine when you're putting a 30% tax and other taxes that go on it, too. for example, in the name of privacy, if i were at "time magazine" like i once were and we wanted to put an app on the apple store and we wanted to