With last month's mass demonstrations of illegal aliens, the United States has entered the era of postmodern rights. The protesters looked like conventional rights demonstrators, with their raised fists, chants, and banners. But unlike political protesters of the past, the illegal-alien marchers invoked no legal basis for their claims. Their argument boils down to: "We are here, therefore we have a right to the immigration status we desire." Like the postmodern signifier, this legal claim refers to nothing outside of itself; it is, in the jargon of deconstruction, a presence based on an absence.