Today on Boot Up: The X sign has been ex’d, Juul has an app for that, a new nuclear plant finally opens, China’s largest wind turbine, Amazon Clinics open wide, Leprosy 2.0 is taking over Florida, car collected data scrutinized by California, and Cameo gets weirder.Giant X Sign Dismantled on Twitter HQ's San Francisco OfficesJuul seeks authorization on a new vape it says can verify a user’s age. Here’s how it worksThe first US nuclear reactor built from scratch in decades enters commercial operation in GeorgiaTerraPowerChina Has Switched On the Largest Wind Turbine EverAmazon expands its virtual health clinic nationwideLeprosy could be endemic in Central Florida, CDC says. What to know about the disease.California privacy regulator reviewing data collected by smart vehiclesPeople Are Hiring D-List Celebrities to Deliver Their Bad NewsSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.