Overthrow does not necessarily mean civil war or revolution. Today, that is most evident in our ability to vote people out of office, but if need be an invasion of public office may be necessary to remove corrupt individuals from a position to inflict damage on the nation in the name of something else. National security is a a perfect example of this. The fact that our authoritative figures 1) don't know the laws that protect we citizens, 2) ignore the laws that protect we citizens, or 3) actively attempt to undermine the laws that protect we citizens is unprecedented, nor accounted for by the people being afflicted. All of this stems from misinformation from our government and the mainstream political news outlets that both run as businesses with self interests. Unfortunately, we are all unwilling "employees" of the business that is our government. You can bet that there are groups of politicians in our system that will happily undermine the Bill of Rights, the laws set forth by the Constitution, and the general principles of governmental conduct set forth by the Declaration of Independence, and that they are banking on groups of ignorant sheep living among the rest of us who will believe their lies. And in this argument they make for the actions they wish to take, they will claim it is in the interests of "National Security" or some other ambiguous outlet of excuses for illicit behavior. The extension of our government's reach, and indeed hold, over the populace of this nation is what should frighten you most, not what may come to bear regardless of the truth. War is inevitable. Only what is being fought for is what matters. Personally, I'd rather fight to instate a government who is responsible and accountable for their actions in the interests of the Constitution and the rights of its citizens, than to fight to protect politicians' seats in office, their paychecks, and their precious power over all of us.