There are plenty of people that believe in the usefulness of the government or its agents, having cameras, listening devices, and the ability to know everyone's' movements, activities, and communications; in which this information is seen as being an obvious benefit in reducing crime and defending the homeland. This may be true, and for all those that lead lives that conform to the state as it is -- such to them, surely makes a whole lot of sense.
On the other hand, the highest law of this land is the Constitution, of which the Fourth Amendment to that Constitution, stipulates that: "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized." The reason that this Fourth Amendment is so important in the era in which the government, corporations, and their agents are basically able to collect, collate, analyze, and know so much pertinent as well as actionable information about so many is that if the justice department of this state, permits such information to be acted upon by that state, then for all intents and purposes, the Fourth Amendment has been eviscerated, and replaced instead with a government that permits the actionable use of what is essentially, general warrants against all that the state so desires to intimidate, arrest, inconvenience, and incarcerate.
What so many people can't seem to visualize is that in a country in which there is no single entity or department that knows thoroughly all of its laws, because there are so many of those laws, and so many interpretations as well as contradictions of those same laws, than virtually anyone at anytime, is undoubtedly, violating or has violated some sort of statutory law at some point. This means, that when the government and its agents vacuum in all of the data about a particular person, and/or specifically targets a particular person, then that person, is almost always going to be in a very vulnerable state, because given enough time and with enough data about somebody that actually is doing something other than laying in their own bed, all day, they will indubitably dig up something of interest.
So, we currently live within a construct, in which, those that are connected with the right people or are of no danger to the system, are safe; though, should they ever consider becoming a turncoat, or somehow lose favor with the ruling elite, than they too are susceptible of being found guilty of some crime. As for the majority of the population, which is apolitical in nature, their lives are lives of normalcy, with the exception being that since the government knows everything about them, they can be found guilty of some crime at the convenience of the state, and therefore must always remain apolitical, quiescent, and seemingly content. Finally, as for all those that are suspected of being disloyal to the state, their conviction is a mere formality, for the evidence of their crimes are clearly and unequivocally documented through the reams upon reams of data that has been extensively collated and studied for this very reason, for when the government knows everything about you, your guilt is predetermined and inevitable.