Gorman, Siobhan (2007年1月17日). “Budget falling short at NSA”. The Baltimore Sun. 2013年6月17日閲覧。 "The agency's director, Lt. Gen. Keith B. Alexander, is seeking an increase of nearly $1 billion in supplemental spending for 2007 and a similar boost next year as the White House finalizes its 2008 budget, current and former intelligence officials say. The money crunch comes despite a doubling of the NSA's budget since the terrorist attacks of Sept. 11, 2001, to approximately $8 billion per year."
Sahadi, Jeanne (2013年6月7日). “What the NSA costs taxpayers”. CNN Money. 2013年6月17日閲覧。 "Aftergood estimates about 14% of the country's total intelligence budget -- or about $10 billion -- goes to the NSA."
“60 Years of Defending Our Nation” (PDF). National Security Agency. p. 3 (2012年). 2013年7月6日閲覧。"On November 4, 2012, the National Security Agency (NSA) celebrates its 60th anniversary of providing critical information to U.S. decision makers and Armed Forces personnel in defense of our Nation. NSA has evolved from a staff of approximately 7,600 military and civilian employees housed in 1952 in a vacated school in Arlington, VA, into a workforce of more than 30,000 demographically diverse men and women located at NSA headquarters in Ft. Meade, MD, in four national Cryptologic Centers, and at sites throughout the world."
“Frequently Asked Questions - About NSA” (English). National Security Agency. 2004年3月7日時点のオリジナルよりアーカイブ。2013年12月9日閲覧。 “Neither the number of employees nor the size of the Agency's budget can be publicly disclosed. However, if the NSA/CSS were considered a corporation in terms of dollars spent, floor space occupied, and personnel employed, it would rank in the top 10 percent of the Fortune 500 companies.”
Risen, James; Nick Wingfield (2013年6月19日). “Web’s Reach Binds N.S.A. and Silicon Valley Leaders”. The New York Times. 2013年6月20日閲覧。 "The sums the N.S.A. spends in Silicon Valley are classified, as is the agency’s total budget, which independent analysts say is $8 billion to $10 billion a year."
“Frequently Asked Questions - About NSA” (English). National Security Agency. 2004年3月7日時点のオリジナルよりアーカイブ。2013年12月9日閲覧。 “Neither the number of employees nor the size of the Agency's budget can be publicly disclosed. However, if the NSA/CSS were considered a corporation in terms of dollars spent, floor space occupied, and personnel employed, it would rank in the top 10 percent of the Fortune 500 companies.”
