Michael Morisy from Muckrock sez, "A veritable FOIA frenzy ensued in 2013 following a series of leaks about NSA surveillance programs, recently released documents show.
From June 6 to September 4, the National Security Agency's FOIA load increased 1,054 percent over its 2012 intake. In that three-month span, the agency received 3,382 public records requests. For comparison, the NSA received just 293 requests over the same period in 2012.
While a few have netted new details about NSA surveillance operations, such as a contract with French security firm VUPEN, the majority appear to have been rejected. MuckRock has a guide on filing with the NSA to maximize your chances of actually getting something back.