“Director of National Intelligence Mike McConnell…indicated that the warrantless eavesdropping program was only one program of many highly secret NSA [National Security Agency] programs approved by [President] Bush following the attacks on 9/11. ‘This is the only aspect of the NSA activities that can be discussed publicly, because it is the only aspect of those various activities whose existence has been officially acknowledged,’ he said [in a letter to Senator Arlen Specter (D-PA) on July 31, 2007].”
– James Bamford, The Shadow Factory, Pages 264-265