https://sg.finance.yahoo.com/news/apnewsbreak-nearly-states-drones-range-045450392.html
States are now watching highways with drones, as if Satellites weren't enough.
US states' drones inspect bridges, help predict avalanches
Public transportation agencies are using drones in nearly every state, according to a survey obtained by The Associated Press ahead of its release Monday. The report from the American Association of State Highway and Transportation Officials shows a sharp increase in their use over the last few years, reflecting the rapid adoption of the technology by governments.
In 2016, the nonprofit group found no state transportation agency was using drones on a daily basis. Now, 36 states have certified drone pilots on staff. When the survey was done this month, all but one state was using drones in some way.
With sophisticated cameras and thermal technology.