For almost two centuries American government, though always imperfect, was also a model for the world of limited government, having evolved a system of restraints on executive power through its constitutional arrangement of checks and balances.
Since 9/11 however, constitutional practices have been overshadowed by a series of emergency measures to fight terrorism. The latter have mushroomed in size, reach and budget, while traditional government has shrunk. As a result we have today what the journalist Dana Priest has called two governments: the one its citizens were familiar with, operated more or less in the open: the other a parallel top secret government whose parts had mushroomed in less than a decade into a gigantic, sprawling universe of its own, visible to only a carefully vetted cadre - and its entirety…visible only to God.