James Madison wrote in Federalist Paper No. 47:
The accumulation of all powers legislative, executive and judiciary in the same hands, whether of one, a few or many...may justly be pronounced the very definition of tyranny.
That extraordinary powers have, under Bush, been accumulated in the "same hands" is now undeniable. For the first time in more than thirty years, and to a greater extent than even then, our constitutional form of government is in jeopardy.
via mefi