How the United States came to outsource its intelligence operations:

“Yet conversations with current and former employees of Booz Allen and U.S. intelligence officials suggest that these contractors aren’t going anywhere soon. Even if Snowden ends up costing his former employer business, the work will probably just go to its rivals. Although Booz Allen and the rest of the shadow intelligence community arose as stopgap solutions—meant to buy time as shrunken, post-Cold War agencies tried to rebuild after Sept. 11—they’ve become the vine that supports the wall. As much as contractors such as Booz Allen have come to rely on the federal government, the government relies on them even more.”