As I wrote before in my dissertation and other comments there can be serious problems in contracting private companies for intelligence work. There is an interesting new piece to read here: https://www.fas.org/irp/congress/2011_hr/contractors.html
"Information at best will always be in some part fragmentary, obsolete, and ambiguous." (Armstrong, Willis C. (et al.): The Hazards of Single-Outcome Forecasting, in: Westerfield Bradford, H. (Ed.), Inside CIA's private world, Yale 1995, p. 242)