dr. anthony fauci on defense after criticism of his consistently inconsistent messaging. >> what they didn't seem to understand is that science is a dynamic process. so when you hear someone say something at one point and then two or three months later if you stick with what you said at the original time when you had one fifth the amount of data that you have now, i think that would be inappropriate. brian: do you know what's also inappropriate you never acknowledged that you were changing you just would change. this after newly released emails show a key wuhan researcher thanked him for down playing the coronavirus lab leak theory. author of the forthcoming book "the price we pay" what broke american healthcare and how to fix it dr. marty makary. what did this expose to a medical expert like you.