professor moeller, things seem to be shifting in this narrative.r thoughts. >> when those letters were written to give the scientist some degree to this, there were key facts they didn't know. they had been told that china had studied it. that they identified the source at the wuhan laboratory. the chinese that they found that it had jumped from bats to humans and that laboratory. given all that, that meant that china had actually done the investigation and basically said was the question. what they didn't know at the time that china was basically hoping that would turn out to be true. but it showed quite different and there were no bats in the wuhan market and that's been dismissed. so the very premise on which the scientists wrote their letters has been demolished but not just that, a paper published by the chinese showing the genome. the genome and this was by she generally. and that critical part the double big section. >> laura: you are importing noble motives from the chinese and you are not a political person but i am. but you are the scient