maybe the best metaphor was michael austro does many great metaphors, was if you give a great neurosurgeon a hammer and chisel, they will not do a good job. we've given public health workers frontline workers in africa a hammer and chisel. the most poignant was a man from liberia got up and tells that he has lost 12 family members, and the cube is there, we are not to employ of this nobody from west africa on the podium. i apologize for that. we thought about that. we tried to get some people and it just didn't work out. but when i said, when we sent out the agenda yesterday, lisa cooper also pointed that out to me. we tried but we failed and we apologize for that. i think that to think that this happened is basically six days, was just incredible. i take some solace from what josh said. he called this a test. that's a great -- this is a test, but i think, and mike said that w.h.o. is going to change. there's no doubt about that but we are all going to change. when you think about that we now have vaccines which been sitting on the shelf about to go into clinical trials in such an ago the