I suppose it depends where you are. In the United States, if we had this Singapore-style surveillance mechanism, what would we do with the data? How would it be

I suppose it depends where you are. In the United States, if we had this Singapore-style surveillance mechanism, what would we do with the data? How would it be used to save hundreds of thousands? Would we implement arrest and detention for those who had had 30 minutes of contact within 2 meters of a presumed positive case?