From the Cato Institute:
The Realignment of the World
"The Bush administration believes it will break this pattern because of the virtue with which it will exercise its power. That conviction, however, challenges the philosophy that founded the United States: unchecked power will invariably be abused. "If men were angels, no government would be necessary," James Madison famously wrote in the Federalist Papers. Because we are not angels, "ambition must be made to counteract ambition" so that the government is "unable to concert and carry into effect schemes of oppression." Thus, when international coalitions form to oppose the United States, they will only be putting into practice the philosophy of checks and balances espoused by the American Founders.
The Bush administration's national security strategy runs counter to the Founders' aims another way. In his Farewell Address, President George Washington implored the American people to "avoid the necessity of those overgrown military establishments which, under any form of government, are inauspicious to liberty, and which are to be regarded as particularly hostile to republican liberty." And yet, it is precisely this overgrown military establishment that will be needed to police an implicit American empire.
Consequently, if the United States declares it is assuming imperial responsibilities for the defense of world order, we should not be surprised if other countries conclude that this development signifies a threat to their own liberties. And if the Bush administration thinks differently, it should challenge the political legacy of our first president directly, rather than assert that it is promoting a more democratic and peaceful world."