Investigative reporters Dana Priest and William Arkin have Pultizer Prize caliber story today in the Washington Post "Top Secret America" detailing the vast national security state apparatus that has been built up since the September 11, 2001 attacks. Their introduction begins "the top-secret world the government created in response to the terrorist attacks of Sept. 11, 2001, has become so large, so unwieldy and so secretive that no one knows how much money it costs, how many people it employs, how many programs exist within it or exactly how many agencies do the same work."

Among their findings:

* Some 1,271 government organizations and 1,931 private companies work on programs related to counterterrorism, homeland security and intelligence in about 10,000 locations across the United States.

* An estimated 854,000 people, nearly 1.5 times as many people as live in Washington, D.C., hold top-secret security clearances.

* In Washington and the surrounding area, 33 building complexes for top-secret intelligence work are under construction or have been built since September 2001. Together they occupy the equivalent of almost three Pentagons or 22 U.S. Capitol buildings - about 17 million square feet of space.

* Every day, collection systems at the National Security Agency intercept and store 1.7 billion e-mails, phone calls and other types of communications.

* Many security and intelligence agencies do the same work, creating redundancy and waste. For example, 51 federal organizations and military commands, operating in 15 U.S. cities, track the flow of money to and from terrorist networks.

* Analysts who make sense of documents and conversations obtained by foreign and domestic spying share their judgment by publishing 50,000 intelligence reports each year - a volume so large that many are routinely ignored.

Glenn Greenwald over at Salon writes that "we chirp endlessly about the Congress, the White House, the Supreme Court, the Democrats and Republicans, but this is the Real U.S. Government: functioning in total darkness, beyond elections and parties, so secret, vast and powerful that it evades the control or knowledge of any one person or even any organization." He adds that "what's most noteworthy about all of this is that the objective endlessly invoked for why we must acquiesce to all of this -- National Security -- is not only unfulfilled by 'Top Secret America,' but actively subverted by it."

The Post's story highlights a place called Liberty Crossing located in the exclusive tony northern Virginia DC suburb of McLean.

Outside a gated subdivision of mansions in McLean, a line of cars idles every weekday morning as a new day in Top Secret America gets underway. The drivers wait patiently to turn left, then crawl up a hill and around a bend to a destination that is not on any public map and not announced by any street sign.

Liberty Crossing tries hard to hide from view. But in the winter, leafless trees can't conceal a mountain of cement and windows the size of five Wal-Mart stores stacked on top of one another rising behind a grassy berm. One step too close without the right badge, and men in black jump out of nowhere, guns at the ready.

Past the armed guards and the hydraulic steel barriers, at least 1,700 federal employees and 1,200 private contractors work at Liberty Crossing, the nickname for the two headquarters of the Office of the Director of National Intelligence and its National Counterterrorism Center. The two share a police force, a canine unit and thousands of parking spaces.

Liberty Crossing is at the center of the collection of U.S. government agencies and corporate contractors that mushroomed after the 2001 attacks. But it is not nearly the biggest, the most costly or even the most secretive part of the 9/11 enterprise.

Googling "Liberty Crossing" and other close variants about all I could find was this post from Cryptome that includes various pictures, including aerial overviews of the site.

Again Glenn Greenwald nails it when he writes:

The Real U.S. Government -- the network of secret public and private organizations which comprise the National Security and Surveillance State -- expands and surveills and pilfers and destroys without much attention and with virtually no real oversight or accountability. It sucks up the vast bulk of national resources and re-directs the rest to those who own and control it.

This should be a clarion call to action, to take back government and demand that the Congress do its Constitutionally mandate job and provide oversight.