several former officials who also support the lab leak theory or cast skepticism on the outbreak time line. what else have they told you? >> yeah. one of the most interesting conversations was with dr. robert redfield who was the cdc director at the time this was all unfolding. i did talk to him about that specifically and asked him this question about these two theories. keep in mind as you hear his answer, he as cdc director had access to information that the general public may not have had access to and here is how he described it. >> i do not believe this somehow came from a bat to a human. normally when a pathogen goes from an animal to human, it takes a while to figure out how to become more effective. i don't think this makes biological sense. >> what he's basically saying, wolf, is part of the reason he believes it came from the lab is