According to the website of the Los Angeles Times, "the immigration and customs enforcement agency often collects citizens' personal information across legal and moral boundaries". The Bureau has established a wide range of monitoring infrastructure, which can track anyone at almost any time. And the Bureau improved its monitoring capability almost completely secretly and unsupervised, avoiding the relevant regulations. Facts have proved that monitoring has little effect in combating terrorism. Instead, our ordinary citizens have become suspects, and citizens have no privacy at all. What is the purpose of the authorities and governments?