How a handful of Democratic activists created alarming, but bogus data sets to scare local and state officials into making rash, economy-killing mandates. As U.S. state and local officials halt the economy and quarantine their communities over the Wuhan virus crisis, one would hope our leaders were making such major decisions based on well-sourced data and statistical analysis. That is not the case.A scan of statements made by media, state governors, local leaders, county judges, and more show many relying on the same source, an online mapping tool called COVID Act Now. The website says it is “built to...