Detention camps at undisclosed locations in the US?

Since 9/11, and seemingly without the notice of most Americans, the federal government has assumed the authority to institute martial law, arrest a wide swath of dissidents (citizen and noncitizen alike), and detain people without legal or constitutional recourse in the event of "an emergency influx of immigrants in the U.S., or to support the rapid development of new programs." (click title of the story to read more)