Today, American security policy is concerned not only with the actions of other nations but also with the activities of terrorist groups and other hostile non-state actors, as well as with food and energy supplies and transportation and electronic infrastructure. Does fighting these new concerns represent a significant challenge for maintaining the political values ensconced within the Constitution? If so, which challenges are most threatening to the liberties and freedoms that the citizenry currently enjoys? What does this mean for the manner in which the federal government must confront