Analysis of cellphone data by X-Mode and Tectonix during four days (Friday to Monday) in mid-July shows that many of the roughly 26,000 devices identified on the Las Vegas Strip showed up in every state on the mainland except Maine in those same four days. This spread reminds me of how people traveled from New York City to different parts of the country and helped spread the virus. Will Las Vegas casinos become the hotspots, and the city itself will become a super spreader?