That's a nice political and theoretical analysis. But what can we do about it?
Create a counter super power to balance the world (the Communist EU

? a Pan-Islamic alliance? China?), in other words, do we need a war (even a cold one) to bring back a balance? By the way, isn't a war, or a tense situation also creating a fertile soil for the wheeping of civil liberties. In such a time, the interest of the nation are superior to the personal interests (read: liberties).
War or cold war doesn't seem to be the answer.
The only solution is probably to be vigilant. Keeping a democratic state organised in a Montesquieu-style division of competence is often not enough. Each citizen has the duty of protesting whenever his personal liberties are endangered. But in our post-modern society, every individual somehow seems to think that someone else is gonna do it.
So, are we screwed?
By the way, is there something as a Court of Human Rights in the US? Or is the Supreme Court taking that job. I mean, when an individual has a grief against the State on a Human Rights level (e.g. torture, disrespect of private property,...)?