History has shown that once the police have massive quantities of data, tracking the movements of innocent people, it gets abused, maybe for blackmail, maybe for political advantage, or maybe for simple voyeurism.
历史表明，一旦警察有足够大量的数据， 跟踪无辜民众的行踪， 数据就会被滥用，可能用于勒索、 政治获利， 抑或是单纯的偷窥。