http://www.heritage.org/Research/PoliticalPhilosophy/hl917.cfmQ: It is in a sense ironic that this lecture is named for Russell Kirk, one of the early “paleoconservatives” who would, like Pat Buchanan, favor a republic rather than an empire. What is the fate of those of us who would prefer our American Republic rather than the imperial superpower role into which it seems to be segued?
A: The American people will have to make that decision as to whether we want to be a free republic or a superpower. That is a crossroads that we will come to just as the Romans did. They first attempted to govern their empire with this old constitution, and it simply did not work. It is, however, possible to adopt a constitution so that you preserve the essence of political liberty and, at the same time, develop the institutions that can govern such an empire and preserve and expand the position of a superpower that brings peace and prosperity to the world.
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this article shows the thinking of the Heritage Foundation :
1) becoming an Empire is "good", we don't even hide that we want that
2) other liberal democracies are a threat, no to talk about "Persians"...
3) only a military dictatorship can be the solution, the US consitution isn't adapted to that task.
so that's what the thinktank behind Bush is about. You cannot say you haven't been warned.... couldn't be more explicit