Prediction markets are generating insider trading scandals faster than regulators can handle them —and Georgethis Santosis allegedlyjust profitedone byof bettingat againstleast histhree ownmajor attendancecases atthat thehave Statecome ofto the Union, and thatpublic's just one of at least three casesattention. These markets serve no real public utility beyond speculation, yet they're forcing the DOJ and CFTC to burn resources chasing down bad actors. More regulation isn't optional anymore.