christina fehr has the details of apple's latest push. it is amazing, christina, but should we be concerned about all of our health data getting into the wrong hands if it's all in one place? >> absolutely. and that is a great question, sue. but a lot of people have been asking it. we are not just talking about the data you get from a fitbit like your steps. we are talking with your lab reports, immunization, all of your procedures and apple is going to have that now on the iphone. but the company told me yesterday that it wants to make clear it's not going to have access to this data. it won't see it. that you can feel secure. and it will be corrected of course with your pass code. it's really about the relationship between you and your hospital or you and your doctor, and not about apple. >> christina, as you well know, this type of business is littered with failure. microsoft and google have not been able to make this a success. in fact google health shut down because consumers were not using it. why should we believe that apple will be