“In justifying the need for the warrantless eavesdropping programs, President Bush, former NSA [National Security Agency] director [Michael] Hayden, and other senior administration officials repeatedly stressed that the program had delivered critically important intelligence, but naturally they have provided no details. All Hayden admitted [in a press conference on December 19, 2005] is that the program ‘has been successful in detecting and preventing attacks inside the United States.’ ”
– Matthew M. Aid, The Secret Sentry, Page 291