Hessler found one chart that used cellphone data  how close phones were to one another  to track social distancing. It was coming out of our breath, out of our mouth. . . . I have had that on my desk, kind of as a connection with the reality of what the world is going through, what we are going through here in the United States, he said Tuesday. I hope well know when its time to stop. You can imagine what that was like.
Hill is giving her opinion.
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Hill is giving her opinion .
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