The budget for national security of the United States has been estimated at $1.2 Trillion dollars for 2012.
Directly the intelligence agencies through the National Intelligence Program (NIP), is said to be $765.3 billion.
This figure does not include $818.4 billion, spent on "disability pensions and education programs." Also $59 billion is for "veterans' hospital and medical care", and the "soaring medical-care needs of veterans of the Iraq and Afghan wars"
A further $947.7 billion, is spent on "foreign affairs budget", $965.7 billion on US military retirees and former civilian Department of Defense employees.
"When the federal government lacks sufficient funds to pay all of its obligations, it borrows. Each year, it must pay the interest on this debt which, for FY 2012, is projected at $474.1 billion. The National Priorities Project calculates that 39% of that, or $185 billion, comes from borrowing related to past Pentagon spending."
In total the figure comes to $1,219.2 billion. (That's more than $1.2 trillion.).
http://www.motherjones.com/politics/201 ... 1-trillion
The Black Budget
This is estimated to be $54,6 billion dollars for the year 2011. These are for "classified intelligence operations in 2011."
"Congress appropriated $53.1 billion in 2010 to secret intelligence operations. That was a steep increase from 2009, when the intelligence community got $49.8 billion."
So how much of this budget is spent on domestic intelligence activities or R&D, this is something we can only speculate about.
http://www.huffingtonpost.com/2011/10/2 ... 63660.html
http://www.wired.com/dangerroom/2012/02 ... ck-budget/