Apart from gigantig societal issues around chilling effects and free speech related issues. Whenever you cast a wide net you must either do significant statisti

Apart from gigantig societal issues around chilling effects and free speech related issues. Whenever you cast a wide net you must either do significant statistical modelling or disqualify the actual results of the warrant from being considered as evidence. Ie you can not both use the results to filter the suspects _and_ use it as evidence without knowing exactly what you are doing from a statistical point of view. As badly understood statistics generally are, the required level of rigor is unlikely to be achieved.