Washington (CNN) -- The September 11, 2001, attacks have created an intelligence community so large and unwieldy that it's unmanageable and inefficient -- and no one knows how much it costs, according to a two-year-long investigation by the Washington Post.
Ahead of the publication, many in the intelligence community worried that the stories would disclose too much information about contractors and the classified tasks they handle.
The Post article that appeared in Monday's edition says its investigation uncovered "a Top Secret America hidden from public view and lacking in thorough oversight. After nine years of unprecedented spending and growth, the result is that the system put in place to keep the United States safe is so massive that its effectiveness is impossible to determine".
The Post investigation found that "33 building complexes for top-secret intelligence work are under construction or have been built since September 2001," or the equivalent of nearly three Pentagons.
"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," according to the Post, with an estimated 854,000 people holding top-secret security clearances.
CNN