(19. August 2009) Executives from Blackwater, which has generated controversy because of its aggressive tactics in Iraq, helped the spy agency with planning, training and surveillance. The C.I.A. spent several million dollars on the program, which did not successfully capture or kill any terrorist suspects.

The fact that the C.I.A. used an outside company for the program was a major reason that Leon E. Panetta, the C.I.A.’s director, became alarmed and called an emergency meeting in June to tell Congress that the agency had withheld details of the program for seven years, the officials said.