The CIA has been operating a "covert global prison system that has included sites in eight countries and was set up after the September 11, 2001, attacks." Reuters. This "hidden global internment network is a central element in the CIA's unconventional war on terrorism. It depends on the cooperation of foreign intelligence services, and on keeping even basic information about the system secret from the public, foreign officials and nearly all members of Congress charged with overseeing the CIA's covert actions." Washington Post (registration required).